When I was getting my F4's in the mail for last month (thank you everyone) I noticed the difference in the postage that was on the envelopes. I sent one to Edie, it was in a legal size envelope and I only needed 1 stamp. I did have it wieghed by my post office. Some I recieved in the same size envelopes had 2 or 3 stamps. I hate to see anyone pay too much for postage. Just thought I'd let ya'll know.