1 " The default tab width is 8 spaces, which is redonkulous.
2 " We'll set it to 4 instead, which is reasonable.
3 " (feel free to change to 2, but 3 is right out).
5 " Also, I'm not actually sure what the individual options do,
6 " but it's something like 'always use spaces' and
7 " 'use the same width when typing, tabbing, deleting, moving, etc'
14 " remove trailing whitespace on save
15 autocmd BufWritePre * :%s/\s\+$//e