Years later, I discovered stamp collecting, after sending away for a starter set from the Jamestown Stamp Company. Along with my first assortment, they sent a form asking me what types of stamps I wanted to receive. After putting down "inflation stamps" [stamps issued in large denominations because currency has been devalued to the point where it costs 1 million marks (or whatever) to send a letter], I was stumped. After rejecting all the "obvious" stamp "topicals" [eg, stamps with puppies, stamps with flowers, stamps with monarchs, etc], I finally let honesty come to the rescue and put down "naked women" (which turns out to be a surprisingly good answer in many situations-- try it at your next job interview).
I fully expected Jamestown to ignore my request, or to send me a polite-but-firm letter explaining that they couldn't help me. I'd forgotten that many old paintings feature naked women [ahh, Rubens-- naked women AND wonderful sandwiches-- is there nothing you can't do?], and that many stamps feature old paintings!
For many years, Jamestown kept the naked women coming [to my mailbox, that is], and, when purchased in bulk, collectible stamps are sometimes less than 1 cent each, making this the cheapest form of "soft porn" I'd ever found! (this was before free soft porn websites, of course).
NOTE: While I think Jamestown is a wonderful company, this isn't an endorsement. I later signed up with Kenmore, which also has a great selection, and I'm sure other stamp companies do too. Jamestown just happened to be the company that introduced me to naked-women stamp collecting.
As crude as some people may find this entry, please note that I refrained from the obvious "and you can lick the backs" joke.