Mails: Filter by sender, pick the least valuable first. Move all to trash. Unsubscribe to unimportant newsletter. Knowledge: Pick one, master it. Pick anothe

Mails: Filter by sender, pick the least valuable first. Move all to trash. Unsubscribe to unimportant newsletter. Knowledge: Pick one, master it. Pick another one, master it. Do it one by one. Pick the valuable one first.