What is the best technique for achieving perfect 45-degree cuts on a table saw?

The best technique for achieving perfect 45-degree cuts on a table saw is to use a miter gauge or a crosscut sled to guide the wood through the blade at the correct angle. Make sure the blade is set to a 45-degree angle and use a push stick to keep your hands safely away from the blade. Practice good technique and always wear safety gear when using power tools.