CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

I stored global variables in my AppDelegate and access them by: AppDelegate *d = [[UIApplication sharedApplication] delegate]; d.someString = ... What's the recommend way to save some typing and so I don't need to AppDelegate *d = [[UIApplication sharedApplication] delegate]; again and again? Thanks! Source: Tips4all