It may be time to dust off the old math skills.

Yes, you can purchase measuring cup sets that include odd-size measures (including 1/8, 2/3, and 3/4 cups). You can purchase a set of odd-size cups, including 2/3, 3/4 and two-cup measures, if you already have standard-size measuring cups coming out your ears. Or you can buy an adjustable measure, that adjusts for everything from one teaspoon to two cups.

If you have a one-cup measure like some of ours, though, where there are lines on the inside showing 1/3 and 2/3 of a cup on one side and 1/4, 1/2, and 3/4 of a cup on the other side, you could use the 3/4 cup line for your current measuring task.

Finally, getting back to that math thing, you could use a half-cup measure and a quarter-cup measure, fill them both, and find yourself adding just the right amount of ingredient to your cookie dough.