Ha, I just came back in from changing a front flat. (Hopefully I put it back on right and won't give myself a pinch flat...)

Yes, I can change a rear flat (though it takes me forever to do so). DBF showed me how to change a tire, but it still took me having to do it myself (while juggling the book and calling him for tips) to really figure out how to do it. It's not changing the tube that's the problem. It's not even the grime that's the problem. My problem is getting the wheel on and off the bike by myself. The tires are slightly too wide for the brakes (even deflated), and the wheel likes to hang up forward of the dropouts and requires a heck of a lot of wiggling, cajoling, and swearing to get back on.

However, I do feel more confident in changing one out on the road/trail, even if I have to flag someone down just to hold the bike still.