I have a bunch of friends who drink alot, and they have other friends who drink alot. Hehehe. So, I get lots of used bottles, and spend lots and LOTS of grueling hours removing labels and getting them sparkling clean. NOT easy, especially with bastard breweries (sorry, I love your beer, but your labels are a HUGE PITA to remove) such as Brooklyn and Bell's. Anyway, I have a large assortment, a hodgepodge. Each batch I try to do a case of 12's, and the rest in assorted larger bottles. I like the 1L growlers for when I have company. The 16oz German-style bottles are great for 2 people, as are the 22's. You should see some of the crazy bottles I've got, though. The ones that piss me off are, for example, Adnams...since i have a butterfly-style capper, the fact that their "grabbing lip" is so low means I can't use them. Grrrr.