I've been trying to get a reduction on a cross stitch kit from the us (a multitude of stores)with postage taking it to less than the uk price (one store). Fail. I thought I made it but then realised the hard way that "most items at 20%" doesn't include my item and then it will come closer to extortionant uk price that makes it pointless (even without the random british customs fee - they tell nobody and if they get you the post office charges you more for "processing"). Fail.
I'd spent the last week putting together a list of us retailers to stake out. It's pointless and it sucks.
And that's before a 10% new customer discount at sewandso neatly comes out as the postage price.