I prepped a VFR to be shipped a couple of weeks ago (friend went to Georgia for the guard). They said it just had to be drained (not purged) and that's it. So I drained the oil, water, and syphoned the gas out. I also unhooked the battery just so my friend wouldn't hop on it when it got there and took off with no fluids (kind of a reminder about it not having fluids in it).
If you don't want to worry about getting fuel in your mouth, check out a cheap syphon pump. I have used one before and they work really well. They look just like the primer bulb on an outboard boat motor most of the time. Here are a few links: