What does everyone use? To measure car wash fluid when it only need 1/4 to 1/2 ounce. What other products would someone need to measure. Do you think a measuring cup is too big, since that can go up to 4 cups on some, depending on the size. I just want ounces, since that is mostly what people deal with in car products. I see you can get a medicine cup that is 1 ounce full. Where do you get those? You can buy 100 for $3.95 online. I just want one, lol.