How long is Forever?

Quick - how much is the cost of a first class stamp? $0.38, $0.41, $0.43 or $0.47. To be honest, I didn't know the answer and had to go on the USPS website to find out. It has been a long time since I've mailed a first class letter. I guess that tells you a lot about how I live, electronic banking for the bills, email for my correspondences; and the occasional text message for people I communicate with under 30. I was sending in a registration for a photoworkshop tonight and needed to mail a check (that's right a check, I had to go find those also). Anyway, in the bottom of my office supply bin thing that I use I found these stamps labeled "Forever". I vaguely remember reading an article in the Wall Street Journal talking about how the Post Office was considering a permanent stamp, but I hadn't realized that they had issued them, and further more I hadn't realized that I had bought them. So from what I understand these stamps are good "Forever" or until we are ruled by our Chinese overlords. Anyway, I may have to test this theory, I'm putting the remaining 15 stamps back in the bottom of my office supply bin thing. Based on my calculations, with an average need of one first class letter per year these may be the last stamps I ever buy. I don't know how I feel about these forever commitments, I mean look how well it worked with my first wife, but baby steps right? First stamps, then perhaps a dog and then we'll work on a woman.