I have been storing my cakes in a plastic container for sometime now but they don't seem to last very long before going off. I was thinking of buying a tin or glass container but not sure which would be best. Any advise would be gratefully appreciated.
I think there are a few factors that have an impact - first of all like you rightly say is what you keep it in - I've never really been a fan of plastic containers so prefer to use a tin and wrap the cake well in clingfilm which i find helps stop them drying out - especially for cake slices. If it's an iced cake then I line my tin in greaseproof paper.
Then I keep the tin somewhere fairly cool - like in a cupboard away from the cooker/oven/dishwasher etc
Lol, I agree, cakes don't last long enough in this house either! I keep mine in a heavy glass cake stand and they keep fine until they're eaten in a few days.
Most cakes can be frozen (in fact a rich fruit cake would normally keep well for months/years in a tin). If you're having problems eating cakes up before they go stale then why not cut in half and freeze one until a later date?