Literally have just found this thread!
I've been working in Sainsbury's for nearly two years now but I'm leaving in four weeks as I'm going to university - I'm actually quite sad to be going if I'm honest! I work on Customer Service, started off on tills, but then got trained on self scan. After I showed I was capable of that, I was trained in everything else (CSD, kiosk and supervising) which is a lot better, sitting on a till for eight hours is now my idea of hell. Currently applying for dual store in Bath which is where I'm going to uni, I really do hope I'm successful!