Make your own foldable sink
Doing the dishes, doing laundy,washing yourself a foldable sink is really something that comes in handy when traveling. So we've bought one of those in a webshop. But they are quite expensive and actually quite simple. In a misterious way we've lost the sink somehere during camping. We didn't feel like buying a new one but there is a really simple way to make one yourself and it turned out quite nice. Here is the manual for it.
And there is your sink. Ready to use