Measuring butter or shortening almost always results in a little bit of waste, since you can't dig every dollop out of your measuring cup. Make it easier to remove the ingredients with a piece of plastic wrap.
Before you measure out what you need, line the inside of your measuring cup with a piece of plastic wrap. Fill in as much as you need, then simply lift the plastic out and scrape/pour it off into the pot. Not only will this result in less waste, it will also leave you with a clean, dry measuring cup for the next thing you need to dole out.