415 W. Cold Spring Lane, (410) 235-3433, alonsos.com
The Roland Park mainstay can be pretty uneven when it comes to quality of food and service, but when you're dealing with booze and happy-hour prices, Alonso's prevails every time. The ever-rotating selection of always-good, always-interesting craft beer (plus the obligatory [probably paid-for] Bud taps) go for anywhere between $1.50 to $2.50 for a pint. Plus: $4 margaritas, rail booze, and wine. Get there early, because the stools at the downstairs bar fill up fast, and if you have to go upstairs, the specials are different (still good, though) and you're more and more likely to run into some rowdy Loyola bros capitalizing on the nightly bargains.