Handle is an easy to use and expressive Swift micro-library for handling notifications.
Delay is a Swift micro-library that enables easy and cancellable delayed execution of blocks.
Both libraries are now fat frameworks that build seamlessly for iOS and OS X and are Carthage compatible. They also both come with workspaces that include both iOS and OS X demo apps.
To get started with either, simply clone the respective repository and run the ./install script.
Further information is available on the respective project sites, linked to above.
I hope Handle and Delay make your lives easier while developing iOS and OS X apps in Swift.