Peach perfume, one thing you can do is to save your downloads (the Zip) in a folder on your C drive outside the game. Just take the ones you want to use in and out of the game. I have an extensive file system of downloads with folders titled like the game: examples: Animals, buildings, scenery, foliage etc. Within the folders are more folders for separating type of things. Anyway then you can keep what you like.