Drinking water is SO GOOD for you. You probably aren’t drinking enough and you should do more. But plastic bottles are so not good for the earth and you should use less of them. So what do you do when you’re out and about, trying to stay hydrated while not creating more pollution? Check out tap, the app that tells you were you can fill up your bottle.

Just carry your own bottle and as it turns out, there are a lot of places that will let you refill said bottle all over. The app tells you where they are. It’s that simple. Run out water, just tap the app, find out where the nearest open tap is and go for it.

A great way to get to know the city while you’re out walking and keep down on the pollution all at once. The app is free for Android and Apple devices.