How can I effectively clear a customer's cart?

Hey, I have a lot of old customers, and they complain about the cart, I found 2 solutions for that:

  1. Create a button that will clean the cart

  2. clean the cart every time the customer goes out (guest), but that the abandonment checkout will still work

I will be happy if someone will tell me how to do these solutions.

Thank you

You can do it by two ways. Manual coding and using shopify apps.

Which Shopify apps you know that do that?

You may check out these options.

Remove Add to Cart Buttons by Hextom

One-Click Clear Cart

Cart Drawer & Upsell by ReConvert.com

Thanks