For Humana, the dutch company that collects secondhand clothes for development projects in Africa, I made a Valentine's Promotion.

Follow your heart.
Learn how to knit your heart (with knitting-instructions on internet and knitting days in your neighboorhood by elderly people that can teach you and have a hobby and someone to talk to at the same time. Stitch the heart onto your clothes, that you hand in and follow your 'heart' with a personal code on www.humana.nl to see where your clothes are hanging out. Get pictures of the new life that your clothes are living with people that can really use them.