These are some scripts that I like to have on multiple machines.
- brew-update: Runs my standard homebrew updates and tells me when the last time that happened.
 - brew-reset: Resets the brew git repo and runs a brew update.
 - crontab-backup: Backs up the current user's crontab to a file and replaces the crontab with a note saying how to restore it. Used when we have scheduled maintenance and need to disable automated processes.