I'm still stuck on the idea of arranging a little informal trade ourselves, too...I think I started a thread about this a long time ago, but why not do something like the following:

I really LOVE the 300-gram blocks of "Chocolate a la taza" made by Valor. They go for $5 a block online here in the US, and I know they are WAY cheaper than that in Spain. So...if someone in Spain wants, say, $10 worth of Listerine Strips, and would mail me $10 worth of chocolate bars (taking into account shipping costs, of course), then isn't everyone happy?

MM, you could trade cans of olives for something easily purchased here in the US, and probably save quite a bit on the cost of them. Aren't there enough expats in Spain who can't bear to live without their Right Guard or Crest?

Just a thought...with so many well-traveled members, it's likely we have all fallen in love with something we can't easily buy at home.