Frustrations are opportunities
If something frustrates you, it’s likely that someone else is frustrated by exactly the same thing.
A couple of years back I launched a simple website that maps all the attractions you can visit for free with a Blue Peter badge. As a parent looking for something to do with the kids during the school holidays, finding cheap (preferably free) days out near home can be a god-send. The official BBC website made it so hard to find these local gems, so I built a solution myself.
With over 16,000 visitors to the website during the school holidays, it just goes to show that if your product solves a real problem, people will seek it out.