Disabling the damn language switch
Maybe it's just me, but I alt+tab alot and somehow I always end up switching language as I somehow press alt+shift. This causes Windows to change language on me, so when writing Swedish all a, a, and o becomes [, ', ; which is a problem since those are common letters. I finally got fed up with that and removed it, so here's a really small for-dummies guide.
Go to Control Panel -> Regional and language options and go to Key Settings.
Select "Switch between input languages" and Change Key Sequence.
Uncheck Switch input languages. Done! Klick OK untill you're free.