Learn how to make precise, neat caulk lines
The Right Cut
Cut off the tip of the caulk tube with a sharp knife at about a 45-degree angle. Cut very near the end to make a 1/8" opening.
Match Strength with Speed
Match the speed with how hard you squeeze. Don't apply too much in one area
Smooth Caulk with your Finger
Smooth the bead using light pressure with a wet fingertip. Clean excess caulk off your fingertip with a damp cloth or sponge.
Choosing the right Gun
But for my money, a medium-priced (about $5) “dripless” metal gun is the way to go. Don't waste money on plastic or a framing caulk gun