Hey darin1989!
Here are the answers to your questions.
1. The reason you have seen envelopes with 2 stamps on it is just so there is enough postage to mail it. Different size envelopes cost different prices to send. You could buy an exact stamp for a certain size envelope but most people just double certain stamps to save a trip to the post office.
2. On your SAE you put your address in the middle of the envelope. If you want you can write the celebrities address in the upper left hand corner, but I often leave that blank so if a celeb has another address I can see that.
Does this help? Please ask anyother questions if you have them.
Next time I would post in the Collecting Help forum, your response may be faster!
Kelly
