Which is the best voucher code website?

Not so long ago, arriving at a swanky restaurant with a scrunched-up piece of paper asking for money off was tantamount to draining the left-over bottle of wine on the next table.

Not any longer. According to consumer experts Nielsen, in the past 12 months alone almost 10m Britons used an online savings code. That’s on top of the millions of us who use printable vouchers for money off at shops and restaurants.

Online voucher sites have sprung up – most notably Groupon, thought to be the fastest growing company in history.