Other Helpful Tricks and Tips

Infinite Levelling:
Typically, the maximum level you can reach will be about 70, when all your minor and major skills have hit 100. However, there are ways of continuing beyond this stage. Boost the governing attribute of a skill above 100 (when its natural level is 100) using spells or items, then go to a master trainer in that skill. Buy master training, and although your skill value will not increase, the bar showing the number of skill increases required for level increase will have gone up by one. This lets you perpetually level up.

The other method is less reliant on glitches. Simply commit several crimes (not enough to earn a death warrant though) and then turn yourself in to the guards. Choose to go to gaol, and you will be 'rewarded' with skill reductions after your time is served. With your new lower skills you can increase them to earn points towards your next level.

Soul Trap Power Casting:
This is a bizarre trick (revealed on the Summit forum by Llaedris the Necromancer, and told to him by "a friend" which allows permanent use of almost any spell. Use spellmaker to build a spell (for example, summon golden saint) with a one second duration, and add two second soul trap on target as an extra effect. Now walk up very close to a wall, and face it head on (the game will crash if you do not) and cast the spell. The main effect will now last forever. This can be used with summoning spells, fortify attribute spells, water breathing, levitate etc.

It has been suggested that this trick may work on others, such as the talking mudcrab, to make stronghold population easier when fortify speed and command creature are used together.

Restoring Magicka Levels:
A valuable tip is that when your intelligence is drained to 0, your magicka bar is filled to the maximum, because your maximum at that time will be 0. If you make a spell that reduces your intelligence to 0 for a second, you will be given full spell points when the one second duration wears off. If combined with other spell effects (a fireball, for example), this can let you cast spells indefinitely.