Chopping up the sidebar

Okay, I need some suggestions:

If you could pick any of the things on my sidebar that I toss, which would they be?

Won’t be removed:
Navigation
Entrecard
About
Meta
RSS stuff
Calendar
Sig related stuff (but can be combined into one)
Google / Widgetbucks

I’m thinking of going to a two-column theme, and to do that, I’ll need to get rid of a few things, :lol:.