Dan,
Thanks for the tips on the trunk. It never sat completely flush on one side but I'll mess with the forward/back position as you mention. I may just have to live with it. It looks good but just doesn't seal completely on one side.
On the Paint Defender, check out my comment and pix here:
3M Paint defender kit. For this application, it was very easy to get good results. For a larger area that is horizontal, it may be problematic. Not sure. PM me if you want me to talk you through what I did.
The reason my garage is so clean is that I won't do much on the car without my kids, but I still like to be around it to look and think what I can do next/better. So I end up neatening up often late at night when the kids are sleeping. Plus I've only been in this house two years, so the garage hasn't had time to get crapped up yet.