I think it depends on where you live, the closer to the sea the worse the idea! I live one mile from the solway firth and things rust overnight in the garage! Didn't have this problem in Keighley. Have learnt to clean and oil tools, especially spades after every use, no longer keep saws in shed or garage. Guns are oiled before being put away, ex forces chaps quoted " I said oil it, not bath it". But it stops corrosion!
David