[Q] System folders to preserve and where is recyle bin?
I was browsing stuff in internal memory and I noticed a lot of folders. Excluding folders I created and apps created, wchich ones I MUST PRESERVE and cannot delete to get system running? Well, I asked because I like to keep it tidy and I guess less stuff in memory means faster phone. I use few apps that have "cleaning" options like RootAppDelete (it has Clean Junk option) and GoPowerMaster (system trash clean option). Does these clean all what is unnecessary or should I manually clean something from time to time?