Geeks rule, especially in emergencies!

I'm pretty sure the research shows that, rather than stick to a consistent routine, you should vary your routine. Creates new neural connections and avoids the use it or lose it effect. Also, this works for exercise too...you need to change it up.
Make a calendar and limit your appointments or meetings to no more than what will fit in the block....three, max.

Remember the old thing about organized data = information, and information that can be used in multiple contexts is called knowledge. The older you get, the more cognitive templates you have, patterns against which you can match problems. This is supposed to make up for the less firm grasp on every tiny detail. Wisdom, the school of hard knocks.

Also, when someone asks for something and you are away from your external memory devices like calendar or journal or Blackberry, ask them to send the request in email, with more details! It's up to them to remember to ask again!

Taking formal courses is fun and challenging....take up something you loved in school and put aside....the A's will come easier because you are better at prioritizing, and have a richer matrix into which you can hang the facts. Quiet place to study is crucial, and take advantage of the textbooks' websites, etc.

Do you know CPR? First Aid? Take a class and become a Red Cross volunteer or EMT or something else equally useful, to help out in the event of a big disaster. Learn to garden, or cook. Have a great time!

Read what the younger folks around you are reading, and check out some of their music, so you have a common framework. If you are good at not being condescending, you can often provide the history or context for something they may not know about. Heck, you were around when the Beatles were recording....or when hip hop was born.......or when AIDS started cutting its swath thru the world...or when Marc Andreesen demo'd Mosaic at Illinois....but limit yourself. Better to be asked than to monologue.

Get a passport and travel abroad. Fifteen minutes a day, consistently, of a foreign language and you will be fluent enough to carry on a conversation in a year. By now you should know what your learning style is...take advantage of it!