Griswold house alert! … ‘Tis the season to run up a huge electric bill with a wildly over-the top holiday display. And if you want to showcase yours — or check out others around your area, there’s a new app for you. The folks behind NextDoor have created the CheerMap, a handy guide to those houses with light shows you can see from outer space.

You can list your own house by signing up and marking your address with an icon and chart a trip from one lit-up site to another. Sounds awesome …unless you live next door to one.