Someone in the developing world could use it!
Do you have a soccer ball you can't use any more? The stitching has all come apart? The leather ripped? The bladder burst? Don't worry. You don't have to be a litterbug. Don't throw it. Send it to the developing world. After all, it's better than what they have.
Do you have a lap-top that is too slow for you now? The battery doesn't last an hour? Some of the keys don't work? No-one else wants it. Don't worry. As long as it's still got a power cord, it's not silicon heaven for your little baby. Send it to the developing world. After all, it's better than nothing.
Do you have some old sheets? A little threadbare? Not suitable for your family. You couldn't be bothered making a rag-rug? But you hate to throw them out, after all, they were a wedding present from Aunty Marge. Don't worry. Send them to the developing world. After all, it's not as if they need the warmth.
Are your children's bedrooms cluttered with MacDonald's happy meal toys that you detest? But your concern for the environment prevents you from throwing them out? Besides, your children won't let you? Don't worry! Convince your children of the good deed you can do by sending them to the developing world. After all, everybody needs a MacDonald's happy meal toy.
Don't fill up your own backyard with your rubbish: send it somewhere else!