Stefano sent me a link to a great review on PinStack by CherriChiodo. She did a very nice review of the website www.MizPee.com. The idea behind the website is that it tells you where you can find the nearest public toilet with quite a bit of good information.
It gives you a rating based on the quality of the bathroom and if you need to make a purchase to use it. It will also let you map the location. Sadly it does not give you the phone number of the establishment.
The service is available for quite a few cities in the US, Europe, & Canada so be sure to check out their website at www.MizPee.com.
Now feel free to laugh all you want.