Hello. Wow, some of you are really kicking butt in your journey to ER. Congrats.
I'm 37YO, married, make $126K US per year, own a home worth $200K with no mortgage. I've got $205K socked in the 401K, and $110K or so in private investments, mostly mutual funds. I live in an upper mid-West college town associated with badgers, but I'm not sayin' which one.
In retirement I plan on living pretty modestly. Not a lot of travel, maybe one class per semester at the U solely for intellectual fun. Still, a safe bet would be $3,500 per month, maybe more - and this includes all home upkeep over time and the used auto purchase once every ten years, blah blah blah.
I've got a ways to go before my private savings can get me to the point where I can live at leasdt a little while off the interest. If I were to retire in my late 40's or 50, I would want to leave the principal alone at least for a few years - until I got closer to being able to use the 401K $.
Again, congrats to all you super-early retirees.