In the last year, I’ve decided I should do the right thing and support the free/shareware software that I use. For years, I’ve been one of those people to see the "purchase/continue evaluation" dialog in TextPad. Boo on me. Well, I’ve finally got responsible and changed that. Some of the applications that come to mind are Remember the Milk, Evernote, and the already mentioned TextPad. I’ve even donated a few bucks for the GMail Multiple Signatures plugin. I’m sure there are others that I’m forgetting.
I’m happy with the decision to purchase and support the applications that I get a lot out of. In the future, I’ll definitely think twice when I see a "donate" or "support this application" link. If I feel they are helpful for me, I’ll do it. I think they deserve it.