I spent way toooooo much in Vegas last week including a new digital camera which wiped out my allowance easily let alone all the other goods I bought. So I took the tags off all the clothes, plus wore some home, threw all boxes/packaging away but left a few items with labels on to look more realistic should I be stopped.
I then posted ALL my receipts and the camera CD and booklets in an envelope and got the hotel to stamp it and send it to my home address

As it happens we didn't get stopped but better safe than sorry I say
The allowance is very poor and very unfair, we wouldn't spend so much if we didn't live in rip off Britain surely ? Then they want us to pay tax on all our cheaper goods as a penalty......it makes me so mad