Cologne for a Day
When you go to a pub in Cologne, a waiter will strafe your table carrying a tray of glass vials by a sturdy handle. If you have no beer, he'll ask if you wish one and plunk a glass in front of you and make a tick mark on your coaster. If you already have a glass, but it's getting low, he'll plunk a glass on your table and tick the coaster. In only rare circumstances will you have to crane your neck to look for a waiter for a refill (in three days in the city, it never happened to me).
Next weekend, from 11 am to 9 pm, Prost! (4237 N Mississippi Ave) becomes a little enclave of Cologne, replete with three varieties of German kölsch, stange glasses, and proper trays. If a trip to Germany is not in your immediate plans, I recommend stopping in to get a flavor of authentic Cologne culture.