Rocks.

My neighbour had a pile of small boulders that he wanted to get rid of; so he donated them to us for our rockery.

There were 53 rocks in all and it took my son and I two hours of lifting, carting, grunting and groaning to move them. When we had finished, it is no exaggeration to say that we were on the pooped side of exhaustion.

It made me realize how tiring some other, slightly more ambitious, rock moving projects must have been.