Some ideas...
:arrow: Add a HomeLink visor if your FFE didn't come with one:
http://www.myfocuselectric.com/forum/viewtopic.php?f=16&t=1242
:arrow: Equip your car with a portable Level 2 charging solution and charge "anywhere":
http://www.myfocuselectric.com/forum/viewtopic.php?f=8&t=1004
:arrow: Get a custom-fitted Covercraft sun shield to keep your FFE (and the battery, which is effectively located inside the cabin) cooler when parked in the sun. Covercraft shields are perfectly-fitted to your car make/model and are much better than the flimsy generic ones available at your local automotive store.
http://www.amazon.com/gp/product/B007552NHQ
:arrow: Get a portable DynaPlug "clean" tire puncture repair kit, and avoid using the horrible spray-in sealant "goop" that Ford provides with the car (which leave a mess inside the tire and on the rim, and will ruin your tire pressure sensors):
http://www.myfocuselectric.com/forum/viewtopic.php?f=14&t=1982&start=20#p10896
:arrow: Get your windows tinted with a high-quality UV blocking film. Again, to help keep the cabin cooler and perhaps reduce the energy used by the A/C.
:arrow: Very easy but valuable "mod": Try running your FFE with a higher tire inflation. 38 PSI is the recommended, but some of us have been trying pressures up to 45 PSI, which seems to yield a 10-12% energy savings, which could translate into 10 more miles of range. YMMV.
:arrow: Completely remove the "flip up" organizer and bin assembly in the back of the FFE (it just all lifts out, without hurting anything) and open up quite a bit more room for cargo.
:arrow: Replace all the external bulbs with LEDs. I've done this (mainly for the "coolness" factor; instant on/off), but technically it saves some power (negligible). I would recommend the high-quality (and
truly very bright LED bulbs) from http://www.v-leds.com. Their products are worth the price. You'll learn this lesson buying inferior bulbs from other vendors (as I did).
:arrow: Replace the internal bulbs (basically the dome lamps) with LEDs. This can be done with cheaper bulbs, even available on eBay.
:arrow: Quite an advanced mod: Re-wiring the LED "eyebrow" strips on the headlights so they always come on automatically whenever the car is on (sort of like daytime running lights). There's a thread in this forum about that somewhere.