Oooh..fun! Here is what I would do...
I'd divy it up like I look at how I like to live life.....
20% goes into savings (IRA maxing is best bet) a penny saved is a penny earned.
20% goes into FUN Life is like a box of chocolates..you gotta eat 'em not stare at 'em!!! That 20% fun can not go towards a new air conditioner or something for the house...if landscaping is her hobby (boy it's one of mine!) then let that do the trick...or if she's always wanted to see a certain place in the world then go!
20% goes to fixing up something around the house."cleanliness is next to Godliness" yeah, I know that's that's a stretch but..protecting that investment is good too...maybe a fresh coat of paint...or an upgraded dishwasher...
20% goes into her checking account to have savings for a rainy day.."a fool and his money are soon parted." they say you should always have 6 months bills funds in your checking account, this might help her get there...it'll help cover all those unplanned happenings that come up.
And now the fun...20% for GIVING!!! "It is better to give than to receive" Set up a special checking account for this fund...whenever you see a need (family's house burned down, little boy needs new coat, lady's husband died young and left her with three children, etc.) Then use that checking account to anonymously give to those who present the need. That kind of generosity is hard to find and will give so much more joy in the long run..plus it breeds generosity...a commodity that's harder to measure than an IRA's growth.
That's how I'd spend it!
ENJOY!
Tara