Reddit mentions of Alert Stamping 5020TF-4C Retractable Extension Cord Reel, Outlets, Circuit Breaker

Things not listed so far:

Electrical:

Add even more lights! Be sure they are well insulated (additional sealing after they are installed). Using a narrow beam (40 degree and under) and lots of cans will result in no glare from the lights. Pick the trim first (gimbal and straight down); we went with Juno 4" cans and Philips LEDS 8PAR20 F25 2700 & 8PAR20 F36 2700. Odds are your local electric supply house will have more LED bulbls than the big box stores. I would check Costco first though because their prices are hard to beat. Go on houzz for even more ways to spend thousands of dollars on lighting.
See if solar power is viable in your location. Payback can be 5-10 years.
Outlets in the crawl space and attic for pest control among other uses.
Outdoor xmas light outlets high up outside (controlled from a programmable timer switch).
Auto closet/pantry lights http://www.functionaldevices.com/lighting-controls/lightcontrollers.php; I would go for ones with a timer.
12vdc for outdoor lighting and under cabinet kitchen lighting.
Outdoor motorized blinds.
Fans that are in the attic for you bathroom & kitchen (a lot quieter); be sure they are thermally protected.
Hot water recirculation pump or point of use instant hot water heater as a boost for the bathrooms that are a long ways away from the hot water source.
If in the US, outlets where you store electric toothbrushes.
Retractable ceiling outlets in the garage.
Lighted mirror in the bathrooms.
Whole house vacuum system (a lot quieter).
Whole house surge protection.
Have a young one? Get outlet protection.
Instant hot water for kitchen.
Remote controlled lights for the master bedroom.
USB combo outlets for charging portable devices.

HVAC related:

Radiant heated floors and above vents for AC.