Despite its suburban location, downtown Grapevine is bustling with late-night activity almost every night of the week. Evidence of this can be found at Main Street's Tap-in Grill & Pub -- a smoky joint, big on stiff drinks, pub grub and live music. It's not a huge place, and its rich, dark-wood interior contributes to its cozy feel. On a recent weeknight visit, one of the servers sat in the corner of the bar playing old covers on his acoustic guitar. It was enough to keep the 30 or so bargoers entertained while they downed their drinks and ordered from a late-night menu. In between songs, he asked if anyone needed anything, but all he got in return was a handful of song requests.