A rule can be used to quickly divide a board into equal parts. Lay the rule on the board with the start of the scale against one edge. Then angle the opposite end to a number that is easily divided by the number of parts you want. (If you want to divide a board into three equal parts you might use 9 and mark the board at 3 and 6.) Likewise, if you need four equal parts, angle the rule to numbers divisible by four, like 8, 12 or 16.
If you’ve ever unsuccessfully tried to get grass to grow in the small bare spots in your lawn, you probably made the mistake of not properly preparing the soil. Grass seed needs a lodging spot in order to hold itself in place and protect it against washing rain, drying sun and wind. Use your garden trowel or hoe to work up the upper layer of soil before laying down the seed. A power cultivator will enable you to prepare larger areas.