One of my wife's friend's mom recently gave her some advice: if your baby is crying too much, then just switch on the vacuum cleaner. Babies are fascinated by the noise and often start crying. In fact, she went through several vacuum cleaners raising her three children!
My immediate thought was - maybe, just maybe, there is an app for that. Of course! Called the 'White Noise Baby', this app plays car ride, vaccum cleaner, hair dryer etc.! Awesome!
But wait, one glitch. The free version comes with one sound. I wanted to buy the others (just costs 99 cents), but the link on the app gives an error. Please fix it dear White Noise Baby application developers, and I will gladly give my 99 cents.