micro, mc, ag silver searcher, stat, find, aria2c, xev, w3m, wmctrl, nohup, xdotool, docker, php, ffmpeg, phantomjs, du, ls [From my history file, all others are homemade scripts and little functions in .bashrc]
du -sh *
Bonus tip: if you're using btrfs, it has a built-in du that keeps track of cow statistics, so you can see which files/folders are deduped and which aren't. It's invoked with
btrfs filesystem du -s *
btrfs fi du -s *