As an affiliate marketer, what is one of your favorite WordPress plugins?

Looking for information on what WordPress plugins affiliate marketers use in new installations. All responses welcome - make sure to include your own website and I'll link to it from the article I'm writing.

Without any doubt Widget Logic - this plug in allows you to have a dynamic sidebar, which allows me to add more and more targeted affiliate ads on my blog at http://miekejanssens.com/blog

The type of plug in really depends on what is is specifically used for. The one plug in that i can not seem to do with out is the DeansFCKEditor for wordpress.

This one plug in updates your current wysiwyg editor to a more advanced editor. One of which you can add source code directly into the posting. This is a great solution as it means i can add pop ups,peel away ads, video and more directly in to that posting.

It also means it will only happen on that posting and no other, this is why this is my have to have plug in. originally designed as a upgrade to the wysiwyg editor but has the function of multiply plug ins.