OK...Tourney bag.
Using a good mix of plastic, 20 would be the comfortable number in the main, with 2 putters in the front. The dividers are really thin and as it was stated earlier, not needed if you fill the bag. Some days, I use the dividers to keep the center open for 3-4 beers wrapped in a towel. It keeps the weight centered..even as they empty out. Light jacket goes in one pocket and my camera in the opposite beverage holder. I keep cigars in the other pocket and the opposite beverage holder is a repository for the open beverage of choice.
I usually carry 18 + putters.
And, as much as I joke about beers, I AM a stickler for packing OUT all my empties. I also despise those bottled (Spring) water containers. I bought a Tupperware 1-Quart jug for $1.19 and it has a perfect pour cap on top. I fill it with powdered, sugarless drink and wash it when I get back home.
Those of us that play doubles every week also carry a shopping bag tied to one of the clips and we fill it up with litter anywhere we see it. This behavior goes a long way with the park department. It doesn't take much to be a pain in the a$$ about it with others who play with you. Before long, you start seeing more people cleaning up.
Fademan
.....and because of that I broke down and ordered a crunch box. from Prime. Must stay loyal to DGCR. I cant wait....