1. Look After Your Clothes
The key to most of these methods (not all, but most) is making sure your clothes are actually in a condition that makes them suitable to sell!
Nobody wants tattered, ripped, poorly cared-for clothes – so the more you look after them while you DO want them, the better chance you have of making money from them when you DON’T!
If you’re the type to sell your clothes when you’re done with them, wash them regularly (using the specified instructions) but not unnecessarily, hang or fold them and keep them stored away, carry a stain removal pen with you at all times, avoid dry cleaning and so forth. Just generally care for your clothes – you’ll have a better chance of attracting people to buy them!