SASEs for Foreigners

[woodrunner.livejournal.com]

So the other day I realized I need stamps on a SASE that will be coming back to me from the US. I'm not based in the States. So I go to the USPS website and discover that they won't send stamps internationally.

I used to be able to buy them online, so I'm wondering how and when that happened and what fostered the decision, but that probably puts a good crimp in a lot of writers' plans to submit to agents or publishers in the USA.

So barring a bit of underhandedness to get the stamps, I came across this website: http://www.stamps.com/welcome/

And was wondering if anyone has used it and whether it works for them?