I just bought stamps online. It is the best thing since the invention of sex. You go to the USPS site, find the stamps you want, pay online, then wait for them to show up in the mail (free shipping). I don't know why I didn't know about this sooner. It is amazing. No waiting in line. No grumpy postal workers. No hours of operation that you can't possibly abide by. I'm hooked. Thank you USPS.