We had sheet cakes made for our guests and did a little two tier cake for us that was blue. We didn’t save ours because honestly the frosting was blue and it got everywhere and we just didn’t want deal with it anymore.
We served most of our cake but there were leftovers so it came back home with us and I enjoyed cake for breakfast for a few days after the wedding, which is exactly what I needed after the labours of wedding planning and the wedding itself!
This is what we did too, but plan on it being the next day snack (we're ordering pizza as a late night snack). Our baker has been around for so long, we just plan on going there for our anniversary and getting a small cake to celebrate.