When using butter, they usually ask that you measure out the butter in tablespoons. Instead of getting out a an actual tablespoon and making a mess, use the stick of butter measuring lines. I'm making mac and cheese and need 4 tablespoons of butter.
FIRST: Get out your stick of butter and notice the marked lines.
SECOND: Cut the lines until you get to the 4 TBSP mark.
THIRD: We only need the 4 TBSP, so throw out the other chunks.
FOURTH: Put the 4 TBSP in the recipe. Done and done!