Bartender 2 lets you organize your menu bar apps, by hiding them, rearranging them, or moving them to the Bartender Bar.
My menu bar apps were getting out of control, so after hearing about Bartender 2 on a recent episode of The Talk Show, I purchased a copy. The app cost me ~£12, but it’s a nifty utility, so I’m happy to support the developer. Also, according to the FAQs:
A Bartender license is for 1 user, for use on all their Macs.