Pointers about wine storage

[sgutte]

I decided to put off buying a wine refrigerator for now and therefore I don't plan on buying wines for aging. However I do like to have a few on hand and also have a few that are good and haven't had the right occassion to open them yet. I keep them in a rack in a cupboard and I guess the temp. can get up to 80F in the house on a hot day (100F outside).<BR>How long can I keep a decent red wine in these conditions? Do some keep better than others? Anything I can do that can help?