Boutique Trash Chic is a project to spread the idea to have a place in your house where you keep stuff you give away to guests. It's probably best to have the place at the entrance of your house, clearly marked. If you don't have space a box will do as well. Guests are encouraged to leave stuff they want to get rid off and to take stuff they need or they can give as a present to other people (e.g. within hospitality exchange, to their next hosts).
The name Boutique Trash Chic was conceived in Brussels, in guaka's house, where there is a space of about 3 by 3 meters in the garage. The "shop" is filled by guests and by the inhabitants of the house who regularly dumpster dive stuff (especially clothes) they don't directly deem useful themselves but that are of good quality and that will make other people happy.