I have noticed that I play my best golf when I am walking with a caddy. I find that the time in between shots that you gain from walking is good in two respects: 1st you can forget the bad swing that you just made, 2nd you can come down off of the high of the great swing you just made. The problem, unless you play on a country club, or a pro tour you most likely don't have the option of having a caddy. The solution that I have found that works for me is this. I play with my dad. He can not longer walk and thus must use a cart all the time. I throw my bag on the cart, and while he drives I walk. My handicap dropped from a 10 to a 4 when I made this switch, and I highly recommend it if you have someone that you play with that is always in a cart.
Just my $0.02 take it or leave it
Just my $0.02 take it or leave it