One of the reasons why I've never been heavily into theme reviews is because of the time it takes to set up the theme and revert my Home screen configuration after testing. Many themes only support certain apps and app icons, hence, it requires a lot of app icon rearranging to aptly show off the theme in question.
I can't remember where I read the comment, but an iDB commenter mentioned SetBack as a possible solution to my problems. It claims to allow you to restore your SpringBoard layout with ease. Yesterday, I tried SetBack for the first time, and he was right, it is the solution that I needed, and you might like it too.