Unprofessional Protip:
Keep a 1GB file full of random numbers on your #Linux server's disk so that when you neglect it and let the drive get full, you have 1GB you can delete right away to get things less broken.
@robertomurta I use this trick regularly when I'm dealing with a VPS that's basically scratch space. Servers that don't do any damage when they break beyond annoying me personally.
It's definitely not in-production advice.