Overflow is an application designed to quickly launch applications, open documents, or access folders while reducing the number of items needed in your Dock.

Any item you see in the Finder can be added to the Overflow interface, making it accessible through a few simple mouse clicks or keystrokes. You still have quick access, but now that item is tucked away in Overflow instead of cluttering up your Dock. The interface is resizable, and fully customizable. Create separate categories for your applications, work files, games, or anything else you want to be able to access quickly. After using Overflow, we think you'll find it just as indispensable as we do.

Requirements:
OS X 10.13+
64-bit Intel

Also available is version 2.5.9 for OS X 10.5-9