I sorta do that, I have a Word document with my wish list and when I add a new addition in I delete it from that list: it's a good feeling (I only have 10 more on my wishlist then I'm "done" for awhile!) Though sometimes I go out of my "order of importance" if I come across something I just cannot pass on at that time (ie a "perfect" example of a certain morph, or a good deal came up, or a breeder made available some anticipated animals, etc)