Passed my 40th cruise last month and it snuck up on me

I was tallying my cruise history to plan something for my wife's birthday and counted 42 total sailings since my first one back in 2006 on a Carnival ship out of Miami. That number surprised me because I never thought of myself as a super frequent cruiser, more like someone who just books when the price is right or the itinerary looks fun. Most of those were 5 to 7 night trips in the Caribbean, but about 8 were longer ones to Alaska or through the Panama Canal. Has anyone else hit a random milestone like that and realized you've spent way more time at sea than you thought? What was your number and what trip pushed you over it?