I suppose you no longer use pen and paper in order to get a wishlist together, but just in case… This is a web-based alternative that comes with all the advantages of any service that works online. You will be able to create a wishlist and have it modified as many times as you want afterwards.

And something that I find particularly likable is the ability to rate all the products that you add to your wishlist. A provided ratings system will let you make it clear to everybody why you prefer the items you prefer. That should make things even easier for all your friends – no need to try to find which item is the one that would make for the best birthday present by going to another person and have him question you in a seemingly innocent way.