Mighty Carry Capacity (3.5e Feat)
From D&D Wiki
 Mighty Carry Capacity [General, Spicial]
I'm smaller, stronger, and I can carry a lot more.
Benefit: When figuring your Strength for the purpose of your character carrying capacity, your Strength is treated as 5 points higher than normal. Then you may double the maximum weight all of your loads (light, medium, and heavy), your maximum lifts, and your maximum push/pull.
Normal: Your carry capacity is determined by your normal Strength.
Special: You can only take this feat once.