An outlet and conduit from any cabinet that is near where a TV would be so that you can easily wall mount your TV, pull the cables through the existing conduit, and plug into all of your components. Also an outlet behind where the TV would be mounted.
An outlet on your eaves/soffit to be able to plug in your christmas lights without an extension cord.
Prewired double/triple/quad gang plates in each bedroom for a switched outlet for a lamp and then independent control of a fan via switch, and the fan light kit via dimmer.
I have 2 4-bulb T5 high output florescent fixtures per bay of my garage on one of these switches
http://www.amazon.com/...ui_search_detailpage . I want plenty of light in there when i'm out working on projects, and when you drive into the garage, instead of the simple dim garage opener light, you have the whole garage lit up for convenience and safety while you're unloading groceries, etc.
Figure out what internet you're going to use and where the service is going to come into the house, where the modem will be, where the wireless router will be, and how you will get signal from the router to any hard wired coax or ethernet cables from there for any connected devices including computers, cable boxes, surveillance cameras, etc.