2) Add Some Creepy Colors Choose your colors wisely. Black lights are a Halloween classic, and you can have lots of fun with a black light on the front porch, but they tend to be more silly than ...

A cult-favorite Halloween decoration, this giant 12-foot skeleton with LCD eyes really ups the spook factor. These sell out fast, so Home Depot has a strict one-per-order rule.

The Screaming Doormat Halloween decoration can be found on Amazon.com for $17.45. Flashing Eyes Halloween Lights Having a pair of mysterious eyes on you can most definitely be a spooky experience.

And prolonged, continuous exposure to this light — from computer monitors, mobile phones and television screens or indoor and outdoor lights — may be enough to damage retinas, she said.