fauve - I do the same thing, in fact that was my biggest reason for joining Catharina's membership for copywrite free, and for learning to do the textures myself, I just knew I was going to change a texture so much that I wouldn't realize it wasn't mine and give it away.. so to be on the safe side.. I only edit Catharina's or create my own.. so many textures floating around on my hard drive I didn't want to forget about something like that.