I love the tesco range of NAS squashes, the mexican lime one is lush and really good with a glass of beer or diet shandy (also free).
I never used to drink much fizzy stuff but since doing SW I treat myself to it everyday - not so great on the purse strings but it means I get to drink loads of stuff I love now and i'm 'allowed' as they are all free. I love it. Diet coke with cherry is a particular favourite at the moment, as is the lime and shandy. mmm!!
I don't think I would handle the diet as well if I couldn't have all my squashes and fizzies every day!