Most of them are just harmless.
1. Some miscellaneous quests get stuck. E.g. I finish them, the quest is just hanging around there in the menu.
2. If I don't do a side quest for a long time and just leave it in the menu, because it either glitched or I didn't want to kill Paarthurnax, it disappears from my quest menu.
3. Good Intentions. Can't even follow Ancano. Walk into the Arch Mage's Quarters via the Arcaneum. Quaranir and Savos Aren are quarreling about something. Go into the Midden. Augur doesn't let me in.
4. Rising from the Dawn(cure vampirism). I became a werewolf, overrode my vampirism. The quest is still hanging around. Perfectly harmless.
5. Making Daedric Boots from the Atronach Forge. Can't pick them up. They seem to be the Dremora-based Daedric boots that playable characters can't wear.
1,2 and 4 are just FIY how glitchy my thing is. 5 is annoying, but I solved it with a pair of Ebony Boots. 3 is what I need help with. So.. HELP!
P.S. This is the third time I am asking for glitch help.

And by the way, I am using Xbox 360. No such thing as a console command additem thisandthat.