GURPS Magic House Rules

Here are some house rules for magic I've used for my Lorimyr campaign.

Mage's Bag of Tricks - containing all those things (chalk, incense, bat's liver, etc.) needed to cast spells.
Magic Specializations - Sorcerers, Wizards, Necromancers, Conjurors, and more.
The Wizard's Guild - A Guild structure for mages from Lorimyr
New Magic Items - Magical Focus, Talisman
College of Battle Magic - Magic in Warfare
Combining Psionics and Magic - When psionics are magic
Endowments Magic from The Runelords - making better heroes