Bartender is, for anyone that has any number of apps starting up or loading in the menubar, essential. In effect, it makes viewing your menu items manageable by significantly reducing the clutter in the main menu.
Bartender creates a secondary submenu which you can manually or automatically hide. Items which you don’t use frequently can be stored in this secondary menu dramatically decreasing the number of items in front of you in the first menu. It’s a fantastic utility that Apple should have almost thought of themselves.