From using a quick overflow:hidden; instead of working out what’s actually broken our layout, to the odd !important to override some poor CSS, there are often times where we need to use less than ideal CSS in order to meet deadlines, to get something working, or to fix pressing—or even live—bugs.
Whilst this isn’t ideal, we have to do it from time to time; all of us.
I like the idea of having a fully documented file of hacks, whether they be css, arc, or C.