Yelena
Hidden in the parking garage of the Atrium at Chestnut Hill is this whiz with the sewing machine. Yelena, mother of Tatiana (as in Bridals by Tatiana), is the seamstress with the mostest. No alteration is too difficult or too hurried for her. We tested Yelena with a pricey Vera Wang gown that had to be refitted in 24 hours; the job included ripping seams, restructuring a bodice, and hemming a fitted-waist A-line skirt. The result: Not a thread out of place. 300 Boylston Street, Chestnut Hill, MA tailoringservice.com.
Tess
Deep inside the grunge of Harvard Square, this boutique is a welcome alternative for those who eschew Birkenstocks for Blahniks. Tess specializes in high-end women's designer clothing from Biella Collezioni, Strenesse, Dosa, Collette Dinnigan, Loro Piana, TSE Cashmere, Han Feng, Mr. and Mrs. Macleod, Ted Baker, and Ter Et Bantine, to name a few. Then there are those value-added services, such as free delivery and private appointments before and after hours. Look out for a second store in Newton Centre this fall. 20 Brattle St., Cambridge, MA .
Classic Tuxedos
High-end tuxedos by Matteo Mass and Denise Hajjar as well as standard lines like Ralph Lauren and Perry Ellis. This place rents tuxedos to celebrities like Ted Danson, as well as various and sundry Celtics and Patriots. Didn't realize it was a black tie event? In a pinch, it'll get you tuxed in a few hours. 249 Newbury St., Boston, MA .
The Wave at Middlesex Lounge
Independent promotions company CLLCTV Boston is combatting the Hub's puritanical closing hours by starting the party earlier. Once a month on Sunday afternoon—a time typically reserved for wallowing in Saturday's mistakes and digesting hollandaise—the Wave invites a rotation of homegrown and visiting DJs to the Middlesex to close out the weekend right. Just over a year old, the daytime dance party provides good beats, promotes good vibes, and attracts a multicultural crowd in an oft-segregated club scene. 315 Massachusetts Ave., Cambridge, MA 02139, thewaveboston.splashthat.com.
Fairsted Kitchen
After 11 p.m., breading and deep-frying tend to compensate for a lack of creativity on most menus. Not so at Fairsted, where themed late-night fare rotates every month. In February it was all things Greek; when we visited in March, Jamaican. The kitchen and waitstaff bring the same attention to after-hours dining as they do to the dinner service, churning out interesting small plates with a touch of whimsy. 1704 Beacon St., Brookline, MA 02445, fairstedkitchen.com.
Phoenix Landing
This Central Square pub's many TVs play the Sox, the Bruins, and NFL games, depending on the time of year. But its true draw is football—the non-American kind, that is. Soccer fans crowd the Phoenix Landing's tiny space to watch Premier League matches during the weekend's earliest hours—especially those who favor Liverpool FC—thrilling in each goal while tucking into Jameson pancakes with a side of cider. 512 Massachusetts Ave., Cambridge, MA 02139, phoenixlandingbar.com.
Temple Bar
When we want to pray to the god of late-night dining ("Please let it be open!"), this is the temple where we come to worship. It offers sandwiches, pizza, and sophisticated small plates—wasabi-laden tuna tartare, spicy crab cakes—to satisfy all types of cravings until 12:30 a.m. And don't forget the cocktails: A frothy espresso martini is guaranteed rocket fuel to propel you further into the wee hours of the morning. 1688 Massachusetts Ave., Cambridge, MA templebarcambridge.com.
Oishii
Sushi restaurants these days often look like futuristic temples, and the newfangled rolls they serve are themselves elaborate works of architecture. So it may seem surprising that a cramped 13-seat spot with nightly hour-long waits continues to inspire such reverence. And then you taste the fish: buttery baby hamachi scattered with slivered jalapeño; a teacup full of creamy Kumamoto oyster sashimi; and, for timid eaters, stellar samples of standard tuna and salmon. 612 Hammond St., Chestnut Hill, MA 2467, oishiiboston.com.
Panificio
Warm sun streams into this Charles Street bakery-cum-café's expansive windows, where the clientele kicks back (sometimes for hours) over high-octane lattes, crumbly slices of walnut bread, and the daily papers. And while you can clearly witness the hustle and bustle outside, it fades as you sink deeper into the shop's meditative momentum. 144 Charles St., Boston, MA panificioboston.com.
Brasserie Jo
Okay, it's not in the theater district, but it's hopping till the wee hours. With a jovial ambiance and serious Alsatian cuisine, this is the place to head for a bite when most other kitchens are cleaning their pots. Drop in until 1 a.m. and take the edge off with a bowl of sturdy onion soup or a plate of choucroute. Check out the selection of great beers and good wines if you want to stretch out the night, or order a cappuccino or an espresso to sharpen up for the road. Colonadde Hotel, 120 Huntington Ave., Boston, MA .
Neptune Oyster
It must be nice to be a pearl: just hang around inside an oyster for a while, getting shellacked until round and shiny. We feel similarly after a couple of hours at Neptune Oyster, quaffing glasses of chilled rose while surrounded by ridiculously fresh bivalves (plus a selection of just-off-the-boat crab claws and expertly dressed crudo). There's a reason this place is known as a gem. 63 Salem St., Boston, MA neptuneoyster.com.
Prima e Dopo
At Eastie red-sauce palace Rino's Place, patrons can get stuck waiting two hours for huge portions of baked rigatoni and chicken Parm. To accommodate the throngs, the owners opened Prima E Dopo across the street, offering balsamic-glazed wings and $6 cocktails. Now we just skip Rino's altogether and hang here, dining on sausage-and-broccoli-rabe pizza, crispy bruschetta, and perhaps the most flavorful meatballs we've ever had. 300 Saratoga St., East Boston, MA 2128, .
L'Espalier
Chef Frank McClelland's celebrated dining room offers not one, but two extravagant tasting options. There's the "Seasonal Degustation"—a six-course meal headlined by dishes like Hudson Valley foie gras (take that, California!) with angelica and oatmeal-nut tuile, or lamb alongside roasted figs and caramelized fennel, both featuring ingredients sourced from the chef's own Essex farm. Not lavish enough for you? Then choose the $200 "Chef's Tasting Journey," and you'll be treated to an hours-long repast replete with caviar and truffles. 774 Boylston St., Boston, MA 2199, lespalier.com.
South Street Diner
From eggs, home fries, and pancakes to the turkey club piled with crispy bacon, the 24-hour South Street Diner nails the classics, then ups the ante with plates like chocolatey French toast and fried pickles (not together, thankfully). With Nitzer Ebb and Passion Pit on the jukebox and mimosas available until 1 a.m., we love South Street for the same reason we love Boston: It's steeped in tradition, but never short on quirk. 178 Kneeland St., Boston, MA 2111, southstreetdiner.com.
Les Zygomates
Happy-hour drinks, dinner dates, late-night cocktail sessions—all are equally good reasons to come to Les Zygomates, a perfect combination of wine bar, bistro, and jazz club. Its ambiance is wonderfully French, though (thank God) there are no overt Paris references or antiques from the City of Light. Even better, the quaffs are affordable and the food superb. There may be a finer frisée aux lardons salad elsewhere in town, but we have yet to find it. 129 South St., Boston, MA 2111, winebar.com.