First graduation (our boys never had kindergarten graduation).
First son in high school and working (though his wages go straight to pay the school).
First death of a close family member.
First time we took the boys to Rio de Janeiro (and Iguazu Falls/Cataratas do Iguaçu).
My first three year contract (sigh...) and raise (not associated with teaching more classes).
K got tenure (I think that's not a first because I'm pretty sure there will never be a second. Sigh...)
First suit purchased for Kelvin (plus a tuxedo for music groups & a few formal jackets -- lots of money spent on this boy last year!).
Oh, first time each boy has his own bedroom (more expenses ;-P)!
We got L (younger son) his first phone for his 12th birthday (like we did with Kelvin), but he never uses it or carries it around, so it was kind of a useless thing to do. We did get to use the phone in Brazil (did we? can't remember, at least we could have if we needed it) and I'm sure he'll use it on his first trip along this coming April.
If I remember more firsts for 2016, I'll edit the post and list them. Gotta share this before the year is too "old"! (in this process I'm editing a few other "Firsts" label posts, you'll see those if you get a feed that also gets recently edited posts, I suppose).