Was in my local Sainsburys (Locksbottom) on Wednesday and there was the Sainsburys basics set of 6 large tumblers and a matching jug.
Bought 2 of them and they're not bad especially for 99p, thought it must be a miss print but it scanned at that price, the jug is pretty large which should mean less trips to fill it up for me. (Job at home is the drinks man). Good News.
Can't find it online.