I refill my bank account from my savings account when it runs low. I refill my savings account from my taxable account when it runs low. My taxable won't run out until I turn 59.5, which is 8 years from now. At that point I'll reevaluate.
I usually refill my savings account with 3-6 months expenses, with adjustments made for large upcoming expenses, end of calendar year (if I can push a LTCG from this year to next easily, then I probably will), and my tax situation.
I Roth convert in December once I know my tax situation for the year. This year I chose to do half of my Roth conversion in March when the market was obviously down.
I rebalance lazily and those rebalancing transactions take place in my t-IRA.
"At times the world can seem an unfriendly and sinister place, but believe us when we say there is much more good in it than bad. All you have to do is look hard enough, and what might seem to be a series of unfortunate events, may in fact be the first steps of a journey." Violet Baudelaire.