What are the best tips for applying tub caulk effectively and ensuring a long-lasting seal?

To apply tub caulk effectively and ensure a long-lasting seal, follow these tips:

1. Clean the area thoroughly before applying caulk.
2. Use a high-quality silicone caulk for better durability.
3. Apply the caulk in a continuous bead without gaps.
4. Smooth the caulk with a wet finger or caulk tool for a neat finish.
5. Allow the caulk to dry completely before using the tub.