You've talked me into ordering a Saress - will see what it looks like. I ordered the XL as although I'm a 16 I sometimes get 18 to hide any bumps. I'm 5' 7" and didn't want it to be up my bum either. No doubt the XL will now drown me and I'll look like a pink tent
Someone earlier mentioned Tesco carrier for their suncreams. I use a brilliant method (quite simple really) but my life's been so much easier since I started putting my creams into a see through thick plastic, zipped clutch bag type of thing. You can buy these types of bags/holdall's most places.
It's excellent. I leave all my creams in there and keep the bag in the beach bag. They are easy to find and when I've used the cream I just put it back in the bag then into beach bag (lot of bags going on here

) The creams don't get sandy and it looks really neat on the beach.