You may have heard of the sites Music Magpie and Zapper. Well, Ziffit is very similar and has the same concept: it's a marketplace where you can sell your unwanted books, games, DVDs, CDs and Blu-rays.
How to earn:
All you have to do, is get all your products together and make sure they all have visible bar codes. Put the bar codes (or ISBNs) from your unwanted items into their website, and Ziffit will tell you how much they will offer you for them. Once accepted, you can just package up the items (a box is fine) and then they provide free postage as long as you can get to a Collect Plus location. There's also an Apple app for your iPhone or iPad available.
Payment method(s) & thresholds:
Once your trade collection reaches either ten items or a value of £5 then you can go ahead and submit it. You can get paid via BACS, Paypal, cheque or you can even donate your earnings to one of their several charities.
Ziffit is a fast and efficient process, and keeps you updated via email every single step of the process, including when your items arrive. As with any service of this kind, you do only get small offers on your items (typically under £1 for each item, most books being 30p) and they don't accept every item. As a result, it's definitely worth comparing the amount that they offer versus Zapper and Music Magpie too.
Have you ever used Ziffit or other similar sites? How did you find the service? Would you recommend them? I've personally had a good experience apart from one time where a book worth £2.31 was rejected for a reason that I couldn't prove otherwise. That was a bit annoying so I'd love to know your experiences!