There are bookmarks, which are used access some pages fast. But i have pages that i want to read only once, but not at the time i find them. Now i have to keep the tab open all the time, so it's memory wasting. It would be great if there were a tool like bookmarks to access some saved pages and after they are read quickly delet them from those "important to read pages" list. I haven't seen anything like this anywhere but this is definetely essential function and would be very frequently used.