As the title says I am so tired of picking up cat poo from my garden. I don't have a cat but one of the neighbours a few doors down has quite a few and they have increasingly taken to using my garden and new flower bed as their litter tray. I purchased one of those green solar powered machines that is supposed to scare away cats with their noise and while it was effective for a short while it isn't anymore. Does anyone have tried and tested methods that worked? Thank you