Fat Gut’z

Daily buy-one-get-one free draught Heineken and Tiger from 6-9pm and buy-one-get-one-free on red and white wine by the bottle all night. 
 
Grass Thonglor, Thonglor Soi 12., 02-714-9832. Open daily 5pm-2am. BTS Thong Lo.  

WooBar

The bar at W Hotel’s latest promotion, Sugar Rush, offers all-you-can-eat daily sweets and pastries like cupcakes, macaroons and tarts along with coffee, tea or tea-infused cocktails for B475 per person. Available daily from 2-5pm. 
 
L/F, W Bangkok, 106 Sathorn Rd., 02-344-4000. Open daily noon-midnight. BTS Chong Nonsi.
 

Youbahn 

Here's a good excuse to checkout this new shophouse-turned-bar in Lumpini with their buy-one-get-one-free house wine by the glass or buy-two-get-one-free Singha beer from 6:30-8pm daily. 

Soi Phra Chen, Wittayu Rd. (Opposite Lumpini Park). 095-546-9163. MRT Lumpini. www.fb.com/youbahn

Wine Bibber Sangria

The daily happy hour from 5-9pm gets you buy-one-get-one free beer and cocktails. 

Ekkamai Soi 2. Sukhumvit Soi 63. 02-714-0709. BTS Ekkamai. www.fb.com/WineBibberSangriaBangkok

Vesbar

Thursday lady’s night offers buy-one-get-one-free on draught beer or cocktails for ladies (sorry gents) from 6-9pm.
 
28-68/69 RCA, Rama 9 Rd., 089-269-9446. Open Mon-Sat noon-midnight. www.fb.com/govesbar