How I clean up my Gmail inbox

Manual Cleanup Every so often, my e-mail inbox fills up with unread messages -- newsletters, promotions, payment confirmation and other messages I don't need. If the number is still relatively low (say 100-200), I just do a manual cleanup. I do a search using this query: is:unread category:primary , then I go through each sender, delete what I don't need and unsubscribe if necessary. To find the…