Compact local git repo

gistfile1.txt

These two commands will minimise the diskspace used for the repo. Please note that Github, BitBucket run this all the time to minimise the diskspace.
Suggestion: Run as often as you can (i.e. once a week for small working-in-progress repo, one in every few days if many people work together).
It's no harm to run it often, cron or system task could be an option too.

# Clean unused commits
`git reflog expire --all --expire=now`

# Compact the disk by remove unneccesary files from the local git repository
`git gc --aggressive --prune=now`