you could smell your clothes.
but you first need a control experiment.
smell your clean clothes.
now smell your dirty ones.
compare & contrast.
to fix your room:
smell your room.
smell another room.
smell your room again.
compare & contrast.
now plant strawberries in your sheets.
water the strawberries.
harvest the strawberries.
slice the strawberries.
put icing sugar on the sliced strawberries.
enjoy.