I will likely be getting married in one year. I am not in shape by any means of the words, but I am not overweight (6' and 156 lbs). I want to be able to carry my (soon-to-be) wife, who is (best guess) between 120 and 140 lbs. In my current condition I cannot carry her longer than a few minutes.
What sort of exercises should I do (and how often) in order to increase my carrying capacity and endurance?