Outside outlets are a nice idea when you want to do something dusty like cutting a piece of plywood outdoors. Also nice if you store/park cars outside with a battery minder hooked up.
I pre-wired for external lights as well, two flood light/yard light for the "corners" and already have the under-soffit lights.
A friend had a remote metal building and had great big halogen floodlights for the parking lot, these were also on motion sensors. Problem is the dirtbags who eventually came around either broke out the lights with rocks or BBs. It probably could have used a lexan lens or outer protector...
As far as low voltage, I have plans in place for Cat 5, RG6U, 2 conductor for alarm system to each door. Garage door sensors, outlet up high on the sidewall for future jack-shaft opener, outlet up high in the center-ceiling for future traditional chain-style door opener (just wanted flexibility).
I wired the lights as devices which plug into overhead outlets. In case a new technology comes out or my existing lights go belly up I can change them out relatively quickly. Also I wired the lights to 2 switches, each turns on half of the lights. Everything that is switched is wired to 3-way switches so I can do whatever I need from either door. I have wiring in place for a ceiling fan as well. It has all its own switching thru the remote control, not sure if I'll regret that down the road (not switching that circuit)
