Cron jobs that don't suck

To run cron jobs with your user env so that it's actually possible for them to run anything, add this to the top of your cron file (edit with crontab -e):

SHELL=/bin/bash
HOME=/home/<username>
BASH_ENV=$HOME/.bashrc

Then look at your ~/.bashrc file and make sure to remove any code (usually at the top) that exits early if found in a non-interactive shell.