I refer back to Fumio Sasaki’s book and his “55 tips to help you say goodbye to your things.” Yesterday, I looked at my phone and asked the question “Why can’t you part with your things?” and “If you lose it, will you buy it again?”, or in this case, “download it again.”
I went through my phone and started to delete applications that I downloaded and touched once. Then, I went back through and decided that there were a few more that could be removed from the system.