> you can however lock two carts to each other Not with the ones I've seen in NL, unless you put one cart on top of the other and turn it upside down. Indeed,

> you can however lock two carts to each other Not with the ones I've seen in NL, unless you put one cart on top of the other and turn it upside down. Indeed, that's a bit of work, lifting one cart (or pushing both carts flat on their side).