What is a lightweight piece of workout equipment for cardio?
I want to buy something used that I can carry up 3 flights of stairs to my apartment with no help. I am actually pretty strong, but when you get to the 3rd flight of stairs with even the smallest load... its tiring!
If i were buying something new, I would pay for delivery, but alas, I am probably looking for something on craigslist that I will have to pick up and bring up myself. Any ideas of what cardio equipment I could buy that would be light weight enough for me to carry up my stairs myself?