My 5 ideas.

• Nail Pen- This is a pen/brush that you use to paint your nails. How it works is you take the pen, hold down a button, press the pen onto desired color (could be on any surface or color of anything) then the pen saves the color, you attach the brush head onto the pen and paint your nails.  
• Magic remover- instead of buy make up remover and nail polish remover use one product for both. Whips that are strong enough to take off nail polish but gentle enough to use on the face.  
• Study Buddy- An app for college or high school students use to excel in school. They enter in what classes they are taking and they are matched with other students world wide that are in the same classes; they can use the app to communicate about the class or ask questions. Also, the app would send out constant reminders about upcoming test, quizzes, etc.  
• Take over- an app parents/guardians install on their phone as well as their children's phone that can disable the child's social media or iMessage until they have their homework, choices, (etc) all done.  
• BreakFAST- a chain of restaurants that delivers breakfast food hot and ready on your door step.