There are proper ways for storing a neck tie. You could either:

1) Lay it down flat in a drawer.
2) Fold it once and roll it up from the narrow end.

Both methods allow for the tie to settle and bring its shape back overnight.

It's that simple.

Avoid hanging them on a hanger like you may have done in high school or college. And when you feel a tie have seen its day, try wearing it as a belt instead of trashing it. You never know what female yuppie you may impress.