O is for... old
The great thing about marrying someone 1 year older than yourself is that they reach each age just before you.
So you can tease them mercilessly about getting on in years, but by the time you make it there it's no big deal. I somehow don't think it would work as well if I'd married someone ten years older than me.
DD decorated the cake... more is definitely less when it comes to sprinkles.