Went to poundland and saw all of these were £1 for any three but actually you can mix and match them as well. so for £1 you can have a can of coke / pepsi/ fanta or whatever you like, 1 chocolate bar ( bounty/ mars and others) and a packet of walkers crisp. Mini Lunch shorted. You can also call it as a credit crunch lunch :)
You can also add a sandwich for another one pound.