For those who don't know the story behind this:

Before Maggie was born, Homer Simpson worked at the Nuclear Plant because he needed the money to pay for all the debt. Once Homer Simpson finally payed the debt he quit his job to work at his dream job at the bowling alley. When Homer Simpson found out that Marge was pregnant with Maggie, he became depressed that he had to quit his job at the bowling alley because the salary couldn't support them. When Homer Simpson begged Mr. Burns for his old life back, he put a plaque that reads "Don't Forget: You're Here Forever." When Maggie was born, Homer instantly fell in love with her. When Lisa asked Homer where did all Maggie's baby pictures went, Homer explains that he keeps it where he needs it the most