the comma that ruined my life
tl;dr: beware the trailing comma
keeping things out of your shell history file
tl;dr: add a space before you type your command
the most important jekyll command
tl;dr: auto regen hides failures
assigning default values in ruby
tl;dr: I was over obsessed with ternary operators
my top 10 commands
tl;dr: I ♥ git