All free menu bar apps.

QBlocker

Qblocker

QBlocker stops you from accidentally quitting an app. It works by blocking OS X’s default CMD + Q keyboard shortcut and forcing you to hold to quit. You can also choose to exclude apps from QBlocker.

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F.lux

Flux

Is your Mac keeping you up late? F.lux is a free download that warms up your computer display at night, to match your indoor lighting. The app saves your eyes by making your display’s brightness adapt to the time of day.

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iBetterCharge

ibettercharge-app

iBetterCharge tracks the power of your iOS devices. When they hit a specific battery capacity (or are fully charged up when plugged in), the app will let you know.

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gfxCardStatus

gfxcardstatus

gfxCardStatus is an unobtrusive menu bar app for OS X that allows MacBook Pro users to see which apps are affecting their battery life by using the more power-hungry graphics. It also tells you which graphics card you are using.

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Shiftit

Shiftit

ShiftIt installs itself in the menu bar (optionally it can be completely hidden). It provides a set of actions that manipulates windows positions and sizes.

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