Switch from YankRing to Yankstack.

It's far simpler. I'll miss some YankRing features (file persist,
share sessions) but it's just too bloaty. I especially hate the
way it flashes crap at the bottom of the screen for normal operations.
Probably configurable but meh. I rarely use it really. Let's see if
YankStack is good enough.
Set copy/paste from clipboard to <leader><var>

Instead of trying to map the system shortcuts like <c-v>, <c-c> etc.
I'll use a system-agnostic set of mappings that start with <leader>.
Should be easy enough to remember and will stop fighting with
other plugins (e.g. command-t wants to use <c-v> to make a vertical split).
<c-v> will go back to visual block and <c-a> can be increment.