A diaper that you don’t have to sniff or visually check for it’s status.

In summertime it is often easy to grab the kid and tear down the pants to check whether a change is needed our not. In winter it is not.

With today’s modern diapers it can be hard to tell if they are filled with pee or not, they always feel dry. I have tried diapers with “wetness visualization”, like ink on wet paper, but it didn’t do the trick; when the diaper’s “ink” was visible it was easy to check the inside of the diaper too.

The email format is more complex than a simple (complex) regex.

One could create a site with libs or functions for several languages. The site should also contain a way to test uploaded libs and functions. That way it would be a one stop shop for email validation code.

One could also create a service that validates addresses for all languages that still don’t have an implementation.