Here are some actuals circa 2008. The reference point was our youngest living away at college, graduating and heading out to a job in their field (yay!). I did not include any educational/educational living expenses, as those were handled separately.
A year in advance I tried to estimate what all the amounts would be that would decrease, looking for a perpetuating windfall
All amounts listed are annuals:
Auto - Inspection, registration, maintenance - $750 (we signed over car after grad.)
Auto Insurance - $950 (would have been $1500 a year earlier, but ins. went down, some due to enrolling in a risk-reduction plan by insurer)
Health Insurance - $750
Health Costs incl. Dental - $450
Clothing - $300
Cell Phone - $430
Umbrella Ins. Premium - $400 (getting a younger driver and car off of your policy reduces risk). A BIG reduction! Not that there were any accidents or tickets, but as a class...