Make Outlook search the current folder only
Problem: In Outlook 2010 and earlier, if you type something in the search box, up above the list of mail, Outlook performs the search on the contents of the current folder. Great. But in Outlook 2013, for reasons known only to certain sadists in Redmond, if you’re looking at your Inbox, the search extends to all folders in the current mailbox. Which means you may end up accidentally deleting mail from the Deleted Items folder, for example, or replying to something you shouldn’t. I’ll raise my hand here and share your pain.
Solution: Click File, Options, on the left click Search. Under Results / Include Results Only From, choose the radio button marked Current Folder.