Warriors tend to have plenty of free skill points, especially if they rely on purchased or found spell books for any mage skills they may want to use.
I put 3 points into Identify (plus one from a quest and another from an item bonus) and 2 into Repair (found 3 items throughout the game with a Repair bonus, that I could equip to repair a bunch of stuff at a time to sell/trade for the highest value). If you are not going to repair loot before selling, then one level is enough.
Free skills, and spell books you can buy
