If I include short-term and long term savings I save around 35% of my gross income. I'm also single, 44 and have no children, just well loved nieces
18% in 401K - max out every year.
$4000 in Roth IRA - max out every year.
$8000 in other savings - mutual funds, CDs whatever.
$1800 - new car fund
$1200 - short-term savings fund - currently saving for a vacation next year to Canada
I have a larger house than I need, but since it's close to my nieces I plan to stay here till they get to college. I'm not pre-paying the house mortgage because the interest is only 4.5% for 4 more years and I think I get better returns elsewhere.