Not counting the money I've spent on supplies and materials for a fledgling crafting sideline (that I've made a whopping $700 of profit off of so far, HA!) I've spent just a hair over 17.5k this year-- my lowest year yet. Roommates, cooking at home, and not doing my usual international travel have made this possible, but I also got slapped with some unexpected big expenses (new mattress, replacement of expensive electronics) so I think it evens out a bit. Not sure if I'll be able to manage the same numbers next year (planning on traveling internationally again to visit aging family members, at the very least), but hopefully by then my business will be rolling along and bringing in a little more money.
Still, now that I know I can, and have done it, and still managed to live a very joyous and satisfying year full of laughter, fun, and social outings, the occasional splurge and a lot... lot of fancy beers, probably too many fancy beers.