A lot of people find the ASCII based command-line text editors (like Vim) a pain to work with. Here’s a few suggestions on how to easily invoke TextEditor (or any other GUI based editor you prefer) from the command line in Terminal.
People who relied on color labels highlighting files and folders in Finder on per-Mavericks OS X were dismayed to discover this feature was removed by Apple, with no option for recourse. Here’s an easy and free way to restore color labels (aka. tags) on filenames and folders in OS X 10.9+
Here is an easy way to encrypt your data placed on cloud storage services like Dropbox.
Apple does not make it easy to have fancy (HTML) signatures in their Mail app. It requires hacking around with system files, but it can be done… safely. Here’s how.