Just finished reading all the Harry Potter books to my kids
Started this project 8 months ago, reading one chapter a night before bed, and we just finished the last book. My kids were actually sad the series was over. Now my 8 year old wants to watch all the movies. The bedtime reading tradition we built is something I hope they remember forever. Even on nights I was exhausted, seeing them excited about the next chapter made it worth it.
That's the kind of project that matters. Getting through a whole series together is no joke, and the fact that they were sad it ended means you nailed it as a dad.