The stones in our outdoor area have haunted me for years. Seven years to be exact. I never liked them, but could never justify spending the money to concrete the space either. So they were a little worse for wear, with scattered bark and leaves and patches.
2 cubic metres (ie a shit load of rocks) and a very hot sweaty morning later we had moved all the rocks into the outdoor area. It's made a huge difference and it looks just a little bit neater in there now.
We also picked up half a cubic metre of bark chips to freshen up all the garden beds. Thankfully it was a lot easier to shovel into place than the stones.