Does anyone else do this?
QVC have a 30 day money back thing where you can send stuff back and get a refund (it's extended to 60 days over xmas).
I'd never bought anything from QVC but my mum said I should get a clarisonic through them (was dithering about getting one), so I bought the clarisonic plus and used it and have now sent it back - I've decided to get a mia as I don't need the extra speeds or body brush.
Have also tried out some decleor, gatineau, bare minerals and philosphy stuff and sent it back (and ojon hair stuff which I loved and am keeping). Oh and bobbi brown makeup and lots of cocktail rings 
You do pay postage in both directions so effectively it cost me £11 to 'hire' the clarisonic for 2 months but it has saved me more than that as the price difference between the mia and the plus is £70.
Does anyone else do this? I'm loving it as a way to try stuff out which might not suit my skin.