If you live a pretty straight-line cycling existence, this could be the bike for you. Apparently it's not too good at turning corners but maybe, with a little practice and forward route planning, it could be really useful. No more unbalanced loads back from the market or on the way to the recycle bays. It's made from two items that often get dumped at tips, so could be very cheap to make.
This comes from a the Instructables website. The site is filled with ideas for those who have DIY dexterity (that'll be people not like me then). Members share their ideas for recycling projects and this cart-bike was built by Ryan McFarland. So first map your straight route and hooray, no more gorilla shopping arms.