Weight Lifting is a strength based skill which increases the amount of weight you can carry before taking penalties. Each point of Weight Lifting will increase your maximum weight by 2s. Like most skills, improving weight lifting is possible on the world map. You train Weight Lifting by doing anything that cost turns while Burdened or heavier; however, carrying more will not increase the rate at which it is trained. While Weight Lifting will improve your maximum carry weight, it will not affect the maximum inventory size (200 items for you, 20 items for your pets).