It's a little thing but you don't need to buy wipes, use face cloths to both clean and then a new one to dry. I used to take out a wet cloth in a sandwich baggie. Tightwad I know but I was so broke I had to save money anyway I could. And just in the washing machine with everything else.
I borrowed a book from the library called meals for £1 or something like that and got very old fashioned cooking mince and padding out with vegetables, pearl barley etc. Sometimes the only place you can save money is the housekeeping. There are a lot of tightwad tips online for instance using white vinegar in the washing machine instead of fabric conditioner. It's quite fun in a weird way if you can get into it.
There is a website called Turn2Us where you can check all your benefits. Secondary debts (unsecured credit card debts) - if you need to you can simply not pay. You can renegotiate with the creditors and tell them you are absolutely broke and facing homelessness and you will give them £5 pw or nothing at all.
If things get really serious you can file for bankruptcy, it costs about £300 and, as you don't own your property, you don't have much to lose.
With some benefits some waterboards will allow you to pay only 50% of the bill and the DWP pay the other half. Energy companies have a warm home discount for people on some benefits which give you about £150 off your bill. You can use the wifi at the library or any hotspot and giffgaff do monthly plans from £5 pcm for mobile phones.
BT Basic is a plan that enables you to have a home landline for something like £15 per quarter.
The car insurance....wow. Mine is £22 pcm and I drive a 2010 kia rio.
I would say just try to be as old fashioned as you can, flasks of tea, homemade sandwiches, don't buy anything out to eat or drink and entertainment can be playparks and the library.