1. I bought some marker dye you put in backsprayer to see where you have sprayed so you don't overlap spraying. Big mistake. That stuff gets on your hands, on your boots, dogs track on their paws before it drys on the ground,etc.. Never again. 2. I have a pump 4 gal. backpack sprayer and then but bought a shurflo electric 4 gal. backpack. The battery weight of the shurflo is just heavy enough to feel you got a real load on your back with the 4 gallons of water. Put it on a small 2 wheel dolly to pull it around the yards now. Electric start button on bottom of backpack so that worked out okay. 2. Bought a Bronco sulky this year and hated it. Felt like i didn't have control and real bouncy. They took it back even though I had put it together and greased all the areas that had a Zerk fitting. 3. Bought Master Landscape Pro last year. Didn't want to spend the time to learn it so never used it. I got to spend some time with it this winter.