I've got a bit less than £1K to live on. We're a family of 4 - me, DH, and two teens.
I work full-time as a domiciliary carer, so my fuel costs are astronomical, roughly £300 a month.
I work long shifts, but DH has a regular 9-5 job, so he goes to Aldi in the evenings to find their 30/75% off bargains. I'm lucky that I have a big chest freezer, so we can shop like this frequently. Also, I'm a good cook, so I can make meals from scratch, using reduced price ingredients. My food bill is around £400 for the four of us.
Neither DH nor I buy clothes, nor do we ever get takeaways or have meals out. The DCs have a couple of clubs/hobbies, but nothing too expensive.
We manage ok on a monthly basis, but there's not much wiggle room for stuff like car repairs, or anything else like that.
I try to put away a bit every month to cover a decent Christmas for the 3 DCs (one is 25). If we can't stretch to the end of the month for some unexpected reason, it gets put on the credit card - but we try to keep that to an absolute minimum.
We eat well/healthy, and have a decent quality of life I think. Our time off is spent going walking in the Dales with the dog. We have camping equipment, so get away at least once a year for a camping holiday - definitely NOT my idea of fun if I'm being honest, but nice to spend some time away with our teens without phones/WiFi.