I'm sure I suggested that she paid off her rent until the end of the contract when she last got a lump sum payment. Council tax would have been a plan, too - if it's already been paid off for the year (because she missed two payment dates, at which point the entire year's falls due), then get some money in there for the coming year.
Not anybody else's bleeping problem if she didn't think 'Oh hang on, it's a real pinch to have to pay those when my income varies so much - if I clear them now, I won't have to worry about them again just after Christmas' and just went out buying chocolate, posting it internationally, getting new fillers, clothes and whatnots. Said from the point of view of somebody who nearly got evicted a couple of times due to benefit fuckups and did have bailiffs turn up for council tax once - I learned to always add a bit on top, whether just up to the nearest tenner when on benefits or more when I was working. That extra always gave me breathing space in case of sudden unemployment, erratic wages frequency/wages, illness, benefits stopping without warning (which happened several times) or maintenance being withheld because I'd offended him in some way (too many times to count). Because you don't duck about with rent or council tax. And, years later, I still do it - which was incredibly handy when the tit hit the fan for the two of us, as there was a month where I was in the last knockings of my overdraft after my salary had been paid and the rent hadn't been taken out yet; I could blob the rent because I'd got so far ahead in more stable times, it was covered. Which meant I could pay the council tax and eat.
Two bloody sideboards would have covered her rent this month. Her DKL/Hellmanns Five Figure Sum/Royalties/Newspaper Articles/Christmas Puff Pieces/Patreons would easily have covered it.