This is a bad habit I have to break, wearing something for even an hour or two and throwing it in the wash.  Today, try to avoid putting every last item in the laundry, and rather, go by how dirty it may be.  It will save on energy, water, laundry detergent, time spent washing, sorting and folding items, as well as extend the longevity of your clothes… all of which, equates to saving money!