The Place: Last Concert Café 1403 Nance 713-226-8563 The Deals: $2 draft beers, $3 margaritas The Hours: 3 p.m. to 2 a.m. Mondays The Scene: This Monday, Houston’s (alleged) longest happy featured one kind of draft beer (Shiner, ran out about 10:30 p.m.) and some mix-heavy machine margaritas on discount…