Amazon wishlists have never really worked me. Too cumbersome to suit my way of doing things and too limited to suit the things I want a wishlist for. So last year, I began using the del.icio.us "wishlist" tag. If I saw something I wanted, it would get tagged under wishlist+$itemDescription, e.g. wishlist+dvds, wishlist+clothes and so on.
This means that I'm able to keep things out of my head while still keeping them in a central place, one I use every day. But more importantly, it gives me a quick list of everything my heart desires that I can access from any computer on the internet. On my recent, exciting trip to San Francisco, I was able to go into an internet cafe and print out entire shopping lists based on my wishlist tag, Unfortunately, this meant I came back with an armful of DVDs.
But around Christmas, this system really starts to show its strength because it has the advantage of giving people a quick overview of everything I've had my eye on. It paid off. My Livejournal Secret Santa bought me a book from the list - The Mafia Cookbook (Thanks Karena!).
Incidentally, here's my wishlist. In case you were... y'know... curious