This is very good advice. However, it would be great if Google could introduce a time element to filters. i.e; 'apply label 'ToRead' if email is over 5 days old

This is very good advice. However, it would be great if Google could introduce a time element to filters. i.e; 'apply label 'ToRead' if email is over 5 days old and is unread and move to 'unread' folder'. Or 'mark message as 'priority' if unread after 4 hours and from dave@important.com'