My family hasn't gone all out with the lights for the past few years. Just some candles behind the windows, wreaths, and the parol (as Rydia mentioned) as far as exterior decorations. However, my family's stocked up on thousands of lights over the years, and with my elite engineering abilities, I will do something freaking awesome one Christmas.
The last time my family went "all out" was back when I was in high school, and we put lights all over the house and shrubs, along with some figures (Santa, Frosty, reindeer, etc.). That was the best.
When I was in a dorm/apartment, I put Christmas lights inside around my room. That's about it.
Jam it back in, in the dark.