Buy a really nice watch, the one thing you always have on you. Have it engraved. Or take the one print you know your parents loved (I hope that is a possibility) and print it as well as you can, buy the most wonderfull frame etc (have it made) and install it with perfect lighting. That would help you get rid of a good share. Save the rest and buy/do something when you need something...
I'm a birchwood and white walls man myself, but Rooth's glass is just so completely over the top it appeals. It's more transparant and less plastic in real life than it looks in the photos. The fiskvägg is fantastic.
Not in a house with three small children though.
I'll add my voice to the others and use the money to buy time or travel. A definite project, but not gear. I have a hankering to travel the E6 from Nordkapp to Sicily, taking trannies along the way. Your windfall would pay for the petrol as far as, perhaps, Bødø :-)