1. Start by cleaning your new cast iron cookware: Before you start using your new cast iron skillet or pot, give it a thorough cleaning with warm, soapy water.

2. Remove rust and stubborn food: If your cast iron has any rust or stubborn food bits, scrub it with a brush. You can also try soaking it in a mixture of water and vinegar to help loosen the debris.

3. Dry thoroughly after washing: Once you’re done cleaning your cast iron, be sure to dry it completely. This will prevent rust from forming on the surface.

4. Season your cast iron properly: Apply a thin layer of vegetable oil or shortening all over the surface of the pan, including the handle and the exterior. Place it upside down in a preheated oven (350°F to 375°F), and bake for one hour. Allow it to cool in the oven before handling.

5. Preheat your pan before cooking: To ensure even heating and cooking, always preheat your cast iron pan before adding any ingredients.

6. Use oil when cooking: Lubricate the cooking surface with a little oil every time you cook with your cast iron – this helps maintain the seasoning on the cookware.

7. Avoid acidic foods for first few uses: Acidic foods can strip seasoning from new cast iron cookware. Stick to non-acidic ingredients for the first few uses until a solid seasoning layer has formed.

8. Do not rapidly change temperatures: Avoid exposing a hot cast iron pan to cold water – this could cause it to crack due to thermal shock.

9. Clean gently after use: After using your cast iron, clean it gently with warm water and minimal soap. You may also use non-abrasive scrubbers if needed.

10. Store your cookware properly: Allow your cast iron to cool completely before storing it. Store in a cool, dry space to prevent rust.

11. Prevent humidity: To avoid rust formation due to humidity, you can store your cast iron with a paper towel or a layer of coarse salt inside it.

12. Re-season your cookware as necessary: If your cast iron starts to lose its non-stick properties or looks dull, re-season it following the steps mentioned earlier.

13. Use wood or silicone utensils: Avoid using metal utensils that could scratch the seasoning on the cast iron surface.

14. Cook a variety of meals with it: The more you use your cast iron cookware, the better seasoned and more non-stick it will become.

15. Enjoy enduring cookware: With proper care and maintenance, your cast iron cookware will last for generations – a timeless addition to your kitchen collection!