I dont know about anybody else, but I am a big fan of using Subversion via the CLI. Unfortunatly then I have to actually remember the commands. So I was google-ing something(i thinks I was trying to set properties for svn:ignore) the other day and came across a tiny link to this great SVN quick Reference card. I was not sure who created but luckily on the card it has a mention.
“Compliled by Cezary Sobaniec” and a url to his site http://www.cs.put.poznan.pl/csobaniec/index.html.

Anyway, take a look its a two sided 3-fold quick reference card that is very complete.

Have fun.