Two Notes folders and other folder issues

[Jetrocker]

I'm not sure what kind of mess I've created over the years between using desktop versions and then Office 365, but I have folder issues in Outlook!  I have two "Notes" folders showing but looks like there's more in my folder structure per the attached clip I took.  I think I have at least two calanders as well.  I have no clue how to begin to clean everything up.  Can someone give me some guidance?  Thanks very much.

Mark

[#2]

One seems to be client-side only, given the "this computer only" suffix. You can copy any items you want to save from it and delete it.