Do you
a) use it up anyway
b) throw it away and buy a different one
c) put it in the cupboard for spare?
This came up for discussion yesterday, and most of my friends were amazed that I went for a. I'd feel far too guilty if I threw it away, and c is basically just junking it without actually using the bin.
There was one lone voice for d) Stop using deodorant altogether, but we shouted hi down.