STEP ONE: get yourself some candles and a cozy little tree which you decorate with little christmas balls.
Take your time while doing this. You don't want to exhaust yourself for whats coming next.
STEP TWO: Stand back while contemplating your master plan.
STEP THREE: Drag electric cord towards you. Choose not to stand on dodgy old ladder.
STEP FOUR: Dont let the lights get tangled in your hair. It could turn into a fight with your own head.
STEP FIVE: Get some appropriate tools to catch electric cord.
STEP SIX: Be careful while hanging out the window.
STEP SEVEN: Attach cord to random nail in wall that just happened to be there.
STEP EIGHT: Make sure electric lights are properly attached.
AND VOILA! Your very own Tim Burton-esque Christmasy boutique! HOW WONDERFUL! :)