How can I preserve tulip bulbs for future planting?

To preserve tulip bulbs for future planting, you should store them in a cool, dry place after the foliage has died back naturally. Remove any excess soil and allow the bulbs to dry completely before storing them in a paper bag or mesh bag. Keep them in a well-ventilated area with good air circulation to prevent mold or rot. Check on them periodically to ensure they are still firm and healthy for planting in the next season.