AnyDrop simplifies your workflow by assembling as many features as possible within one customizable menu bar app, which can be used entirely with hotkeys and drag & drop. It is especially suitable for processing text and images.
CheatSheet for Mac enables users to have a list of all active short cuts of the current application right at their fingertips. You don’t have to memorize them, as each hotkey listing is also a link to the function. It worked with every program.
CurrentKey that lets you manage your time (spent across apps) and spaces (virtual desktops). This menu bar app even lets you jump directly to a specific space, without needing to swipe between them or open Mission Control.