Stop in for a cup of coffee

Yeah... I have certain folders that I don't sync at all as well as programs and files that are only on an external drive (Like Turbotax) The clutter can really bog down the machine. The Bloatware is annoying as well
I'm pretty sure the old one does 'backups' to the cloud right now. I really don'r know what all that includes. How do you keep from doing certain files?