Does anyone know if Sainsbury's still do any double up/Nectar offers. There used to be a lot more choice on how to spend them to get the most value, but now there seem limited options..Few Christmas presents that I've got my eye on in Argos - does anyone know if there are usually any double up offers or similar in the next few weeks? It's taken years to build up £80 and feel like I want to max it! Thanks in advance