Just ordered mine from Fotobella yesterday - so excited! As to earlier comments on the patterned envelopes making it through the mail okay: It doesn't matter what the envelope or package looks like - just the LABEL OR ADDRESSING SPACE. As long as it's clear and uncluttered, you'll be fine. You don't even have to have an envelope or box - you can mail a soda bottle or tennis shoe as long as it's clearly labelled, LOL! (Of course, you'll pay a bit more for postage, because it can't go through the scanners...)
Happy for no reason...