My contacts are a mess. DH and I sync contacts through icloud, gmail and our mac, so we have duplicates and SUPER old contacts. I guess I hoard contacts for possible business reasons, but I don't think I need to keep them on my phone! Any suggestions for cleaning things up? Should I ditch old contacts? Keep them in a subfolder somewhere? The digital clutter is driving me crazy!

I'm on a Mac and use an iphone.