I'm 40 and it's hard coming up with things I want when family members ask me. I generally have what I need and any more big "stuff" is just clutter, so the smaller the better.
THIS year, MY sister is most likely giving me those coffee joulies because I'm always complaining about my coffee getting cold before I can finish the cup. They're metal, stone-like things that you put in the cup and they keep the coffee nice and hot. My sis mentioned getting those for our mom and I was like "YES! THAT'S WHAT I NEED MYSELF!!" so I suspect (I HOPE), I'm getting them, too.
Other things I would love, but would never buy for myself:
Diptyque candle in Baies
Gloves that have those touchscreen sensor on the finger so you don't have to take off your glove to use your iPhone, etc.
A really decadent facial moisturizer like La Mer (in my dreams, I know...)
One of those new crockpots where you can sear the meat right in the pot without having to use another one on the stove.
A really good winter coat (I have a ton of cheap jackets, but nothing "good")
A membership to Massage Envy and maybe 3 months worth of prepaid massages (actually, THIS one, I just might get for myself...)