Make an honest ETA device with littleBits that lets your housemate [parent, significant other, roommate] know when you are on the way home and likely to arrive. This cloud-connected progress meter tracks your proximity to home by reading your location from your smartphone and displaying it on a bargraph module in your house. If arriving home first, you can text your housemate with the press of a button to let him/her know that you got home first.