...to get booze at 4am is 1000 Liquors. If you're somewhat new to Chicago, and have the means to get there, and if you like to drink, then this is good to know! Also, they have decent prices on kegs - you just put a deposit down on the shell and the tap, and you get that money back when you return it. Some places just charge a flat rate for those things and you don't get your money back even when you return it. My only problem with this place is their taps tend to break halfway through the night, so make sure you have a way to get back there to exchange it just in case that happens. They'll tell you it's your fault it broke, but trust me it's usually not, their taps just suck. But sometimes that's better than spending more somewhere else.