What Do You Wish You’d Known about Cloth Diapers?

The title pretty much says it all: What do you wish you’d known about cloth diapers before you tried them yourself? My main concern? What size Chinese prefolds to get! I felt sure it was possible to buy three dozen of just one size and stick with them from birth through potty training. I ended up getting the regular size with green stitching, and they did work until my daughter was out of diapers.

What were your concerns? (Or if you don’t have a baby yet, what are you wondering about?)