I sent out a bunch of Photos for signatures across the pond to the US. What I failed to realize, however, is that all the SASEs have british stamps on them too.
What are the chances I'll get ANYTHING back? I'm assuming the US Postal service is pretty strict about these things and will probably quash any return envelope if anyone decides to write back.
As someone in the UK, where is the best bet of getting US stamps? I'll have to try again much later in the future when I've stopped feeling so dumb over this.

