Separate Taskbar Sections
I still use - and love - Quick Launch in Windows 10 and therefore I have 3 distinct, separate sections in my taskbar. They are: 1) Quick Launch, 2) Application Icons, and 3) The System Tray. As it is, they all run together and can be sometimes difficult to tell where one section ends and another starts. My suggestion is to separate them with something as simple as a vertical bar so that they are visibly separate when the taskbar is locked.