What should be done with clothes that have exceeded their three-month pickup deadline at a dry cleaner, taking into account that some shops sell them and others donate them as charity?

If the shop stipulates to the garment owner that it will dispose of the garments if they are not collected within a specified period, then the shop is permitted to use them or give them away as charity. However, if there is no such stipulation, then the garments are a trust with the shop, and the shop owner may demand a storage fee for the extended period. If the shop owner despairs of the owner coming to collect them, they should give them away as charity to the poor and needy.