One option would be to make the power adapter fancier. Instead of just being a box with a wall cable on one end and a MagSafe cable on the other end, what if i

One option would be to make the power adapter fancier. Instead of just being a box with a wall cable on one end and a MagSafe cable on the other end, what if it had USB and Thunderbolt ports? You would have the same amount of gear to carry around, but the actual laptop could be thinner.