I'm poor now I have wine & fags when I've made a few extra quid, otherwise I rampage around in vile nicotine withdrawal - and make rollups from the leftovers of rollups [eeuwww] I have spent a total of £50 on clothes in the past 4 years. In the winter I have to choose between using the oven or getting one room warm enough (I'm all electric, on a meter). It's fucking miserable.
Having said that, I eat very well because I grew up poor and know how to get 5 dinners out of a small chicken & then make stock from it, etc. I REALLY miss being able to get a takeaway or pop into a pub; everything's so much work when you're poor! Can't go & visit friends because I haven't got a car and fares are too expensive.
I left school in the 70s and was excitingly poor for a while - I wouldn't find it so exciting now, but was only 18 at the time! Have to disagree with the OP - fags & booze were far more affordable, proportionally, so even if you were cold & half-starved you could still spend an evening with friends. Hitch-hiking was acceptable, so we got around quite a bit, and you could still find amazing vintage clothes, dirt cheap, in second-hand shops.
You know those stories about "when I were a lad, you could have 5 pints for a shilling and a penn'orth of chips on t'road home"?
My version is: "I remember the seventies, when you could still get a quid deal and be stoned for the weekend"