Able Learner( Races of Destiny, p. 150)
You have a great aptitude for learning.
Human or doppelganger,
All skill ranks cost 1 skill point for you to purchase, even if the skill is cross-class for you. The maximum number of ranks you can purchase in a cross-class skill remains the same. This feat does not affect the skill point cost to learn a language or to gain literacy (for a barbarian or other illiterate character).
This feat may only be taken at 1st level.
Cross-class skills cost 2 skill points per rank.