What you watch on TV

Internet-connected televisions can collect data on everything you’re watching and sell it to advertisers – and many are set up to do it by default. (To keep your information private, turn off data sharing in your TV settings.)
Whom you live with

Your dirt reveals whether there are more men or women in the household (the sexes shed different types of bacteria). By examining the fungi in your dust, scientists can also predict where you live, down to about a 240km range.
Try these 9 ways to get rid of dust in your home you never thought of.
Whether you are outgoing

It’s written on your front door. According to colour experts, a red front door means you’re not afraid to say what you think. A blue door says you’re naturally at ease in most situations. Green broadcasts your traditional values, and black means you’re probably consistent and reserved. Inside the home, extroverts tend to choose open, spacious furniture layouts. If you’re introverted, you probably decorate with soft, solid colours and muted patterns.