You asked for money-saving ideas. I should like to ask the cost to H.M.R.C. of refunding VAT to overseas visitors, and (supplementary question) why we do it.
When I pay VAT in France or Germany, or the various sales tax equivalents in the U.S.A. there is no refund available to visitors.
The answer to my first question is the sum you can save straight away by removing this unnecessary concession
Why does this idea matter?
TO CONTRIBUTE TO THE NATIONAL DEBT