A collection of useful Foundation and UIKit categories.
SAMCategories are tested on iOS 6 and Mac OS 10.8 and requires ARC. The will probably work on lower deployment targets though. Released under the MIT license.
Simply add the files in the SAMCategories/Foundation and/or SAMCategories/UIKit to your project. You can also add SAMCategories to your Podfile if you're using CocoaPods.