I ' m in my second week of a new job and needed this . Constantly thinking What have I done ? after leaving a job I was at for five years . The training is great , but it ' s the feeling of being totally useless for the first few weeks whilst in training that is getting me down . Hopefully things will get better . <| sep |> Installing and uninstalling applications . I ' m a recent convert to macOS , but I was shocked at how easy it was . To install , you just drag a . app file to your applications folder . To uninstall , you just drag it to your trash . No more going into add or remove programs to hunt it down and waiting for all the files to be properly removed before you can uninstall the next program this happened to me whenever I did my annual uninstalling of all the crap I didn ' t need .