I have been looking for a wireless mouse with the small type USB receiver for sometime now, but have not managed to find a recognisable brand for under £15. I saw the Logitech M215 on the Currys/PC World website today for £11.99 which I think is a pretty good price. Seems like there is lots of stock available for reserve and collect too, which is handy.
Amazon: £16.56 (or £13.99 for out of stock red version)
If anyone knows of a well known brand (not the generic sub £10 rubbish sold on eBay) wireless mouse with the small USB receiver that is cheaper then please let me know. So I can delete my reserve and collect confirmation email, and buy that instead!!
Don't forget 3% Quidco/Topcashback on reserve and collect orders!