Use a plastic spoon or frozen dessert stick to smooth a seam. For best results, always buy quality caulk. Don't buy a cheap caulk gun, either, especially if it will be used frequently.
Caulk is available in a wide range of colors to match most decorating schemes.
Cut the tip off a tube of caulk at a 45-degree angle with a knife or scissors. Before cutting, decide on the size of bead that is needed for the job. Cut an opening that is slightly smaller than the bead size needed. Relieve the pressure on the caulk gun when not applying a bead to prevent caulk from oozing out of the tube. Use a craft stick to remove excess caulk.