Go 4 life suggests adding Endurance, Strength, Balance and Flexibility to your workout routines. The website has a youtube channel filled with information and some free exercise classes such as

Wall Pushups:

Stand on 1 foot:

If you are still young and preparing for old age, thing about adding Tai Chi or Qigong into your exercise routines.

Here is someone showing you some basic Tai Chi movements:

and here is another person showing you some basic Qigong movements: