Is there any kedusha in a yarmulke after it has been worn? Do I have to put it into shaimus or can i just throw it out? Thank you.
Answer:
Although the custom of wearing a yarmulke has been incorporated into halachah, it remains a custom and there is no inherent kedushah in the yarmulke itself.
It can therefore be thrown away, and there is no need to put it in sheimos.
Best wishes.