Don't Delete Your Apps, Unistall Them.
Soon after I switched from a PC to a Mac, I was taught that the way to uninstall an application was to simply delete it and empty the Trash. It wasn't after finding some leftover folders and files leftover on my harddrive that I decided to find a better way to uninstall the app. There are some well known version like AppDelete and AppZapper, I have been using the free alternative AppCleaner. While the names aren't that creative, they make up for it by the usefulness of the application. What it does is search your harddrive for similar files to the app you want to delete and then you get to choose which ones go away. Great way to make sure the app didn't leave any unnecessary files or I can be able to do a clean install again. You can get AppCleaner here.
Difficulty Level: Easy