Treat your ties well and they will last. 

What constitutes good treatment?

• Unknotting them as soon as you take them off
• Storing them properly
• Avoiding stains
• Giving ties a day to two in between wearing

Cleaning
The bad news is that silk ties aren't really made to be cleaned, even by a dry cleaner. The silks used are very delicate and even simple dabbing with water can leave a mark. So there's a good reason why some men will go to all sorts of lengths to avoid anything splattering on their ties.

If you've already dropped something on your tie, what do you do? Run, don't walk to the best dry cleaner. Be aware, though:  The odds are still only about fifty-fifty that your tie will come back with the stain removed.

Storage
Now whether you choose to store your ties in a drawer, on a hanger in the closet or on one of those mechanized rotating gizmos, the basic rules of tie storage to avoid wrinkles and creases still apply:

1. No weight on them
2. No hard folding

Basically, wherever you choose to store your ties, just make sure that they have plenty of room to avoid being crushed.

Wrinkles & Ironing
Now provided you follow the above advice, ironing should never be an issue. But wrinkles do happen. If you need to iron your tie, follow these guidelines:

1. Start with your iron on its lowest setting, usually labeled "silk"
2. Flip your tie over because you will iron it from the back
3. Use a pressing cloth (a pillowcase works nicely)
4. Iron from the bottom to the top to discourage wrinkling
5. Hang your tie immediately so it cools without wrinkles