
As a youngster Icarried my bag and often played 36 holes a days. In those days they didn't pay much attention to wide straps for comfort so it was an effort.
Here in the States most use Golf Carts which I don't like but at some courses they are compulsory which is a bind, but you can get your cart partner to drive while you walk, which is fine.
I have in Aussie a very nice Trolley that you can pull or push to change the strain on your arms, it has pneumatic tyres and a comfortable padded seat that opens for storing stuff (Very usefull), I shall put a pic of it on my www.mastergroover.com site asap so you can take a look. It's well balanced and easy to pull or push.