If you travel with more than one bag, it helps to have them lashed together or attached when checking or transporting them. Lashing straps and special nylon webbing help keep the luggage together until you need to check the bags at the counter. Keeping them lashed together helps you move through the airport or travel areas more efficiently, as the luggage acts as one solid unit, particularly helpful if you have one wheeled bag and the others without wheels.
Place the heaviest bag on the ground or on an wheeled luggage dolly.
Stack the lighter bags successively on top of each other. Bring a bungee cord up and around each bag to lash it to the one prior.
Wrap a large luggage strap over all bags, running it through the handles or loops.
Tighten the strap as tight as possible to make the bags compress together, making one solid unit.
Wrap another bungee over all the bags so it loops up and over the bags and attaches at the bottom. Attach the hooks to the wheeled dolly, if using one.