The Google Home is in millions of households.

Last year, Google revealed that it had sold more than one Home smart speaker device every second since the previous October. According to our own calculations, that means Google sold at least 6.8 million Home devices during the holidays in 2017 — and they seem to have been selling at a steady clip since.

Google sells five Home devices right now: the $50 Google Home Mini, the $100 Google Home, the $300 Google Home Max, the $130 Nest Hub, and the $230 Nest Hub Max, all of which have Google's artificially-intelligent Assistant built in.

So now that Google Home devices have spread, it helps to know what you can actually do with them. Some features are obvious — like asking for the weather — but others aren't so obvious.

Here are 19 of the coolest things you can do with your Google Home.