I already used a bunch of them
tm/tfc for good looking screenshots
enable/disable/removeallitems to "fix" some crappy things with followers
addperk/removeperk (one by one) to fix some unintentional mistakes (switching heavy to light armor and/or removing tier 1 perk points when i read about the crappy low armor cap)
sixchange to remove the bugged and stucked arrows and ice which do not disappear always
(???) to get the last 5 points in alchemy (thats just a joke, enchanting/smithing is way to easy way to reach 100 while alchemy takes ages)
disable to remove some unkillable stormcloack leaders at camps
So all in all it feels like bugfixing my own savegame