We’ve all been stranded using controlled breathing techniques to quash the unrelenting need to pee, as we search for the nearest bathroom. But at least have2p’s inventors are used to it. The iPhone app uses the phone’s Maps application to track restrooms around you, even telling you which are public and which are customer only. Most importantly, the application even provides bathroom reviews, giving you ratings and letting you comment general cleanliness, decor and enjoyability. The best bit? It’ll solve your toilet troubles for nothing, as it’s totally free.