I love a beautiful stamp. It completes an invitation or thank you note and stamps are little works of art. I am still amazed that a letter can get all the way across the country in a matter of days for such a small price. Unfortunately, my over-worked post office staff seems less enthusiastic with the quest for stamp beauty. (The boring American flag sheets do not count as interesting in my book).
I discovered you can buy stamps online directly from the USPS site (duh). There are a ton of stamp options that have never seen the inside of a Brooklyn PO and they deliver them for free! You can even coordinate custom stamps to match your events. Aah, the beauty of technology and old-school together on an envelope.