We carry a small folding "hand cart" type in my truck. It gets used for all sorts of carrying. Not good for rough going, but wonderful on smooth surfaces. We can carry our BOB's, but they are heavy. We put both on the hand cart and are on our way. When needed, we can fold up the cart and carry it, and our BOB's without difficulty, but not for long distances. Getting on a bus or truck is no problem with it folded. Cost about $24 at Sams Club. Rated for 150 lbs.

I also have a heavy duty one with a capacity of 300 lbs, but it is heavy and even folded is a bit big to carry with our BOB's. I have carried my inboard (volvo marine) boat engine on that one.

The smaller one works just great for the BOB's.