Getting the most bang for your buck when it comes to clothing is not always a good thing to look for.
We have become a throw away society and many stores have low priced clothing made up of cheaper synthetic fabrics that neither feel nice on nor keep their shape well while laundering.
For the most bang for your buck buy at off season. Winter coats and boots in March or April, or swimwear in late August or September. This is the time when stores discount so they have room for the clothes that are coming in at the first of the season.