Keep a skill point or two in reserve, and wait until you start running into higher level items before learning the next level of Identify. You should still have enough skill points for other purposes that way, without having to stash too much loot until it can be identified.
The character level requirements for Identify are 1, 5, 9, 13 and 17, so you shouldn't run too low on skill points even if you always learn a new level when it becomes available. One level of the skill is available as a quest reward, and you may find or buy equipment with an Identify bonus.
