If you are a Mac user, I’m sure you heard about Alfred, it’s, as far as I know the best launcher. Alfred will speed up your work and make your mouse kind of useless.
Alfred has also a great feature, the extensions. You first need to buy a powerpack and then you can start to write them.
I wrote an extension that gets your connection speed and displays it using Growl.
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To install it, just double-click on the file, and to run it type in Alfred:
And that’s it.