Restaurants, salons etc all still jam packed in this area (otherwise low cost of living area, low house prices etc) so I would say the effect of this might differ depending on area - people with higher fixed costs eg high mortgage will likely be cutting back first I'd say.
Hair wise, personally I was planning to start going back more regularly to the salon in the autumn, and go for a shorter hair cut which would require more maintenance. I'm dark brunette. Found myself £80 down for a messy colour which was all over my hairline, ears etc because they were in a rush and a basic straight cut long bob which the stylist did in about 5 mins when I had asked for layering etc because she was doing 2 people at once. Just wear my hair longer again now (trimmed at home) and do my own dye (far tidier at it myself!).
For us, it is about maintaining our quality of life whilst still cutting back. Still spending out on the site fees for our caravan which we go to at the weekends, holidays etc. Have cut out coffees (other than freebies eg free Nero with O2 app weekly), cook more at home but better food, packed lunches etc. Heating reduced and using our open fire more often on chilly nights. Have ditched some kids clubs which were expensive (e.g. gymnastics at £10 a week, plus then asking for donations for equipment etc and my daughter could still hardly do a handstand!) Swimming at £240 for 12 weeks 30 min lesson for the 2 of them, I now take them myself once a week and they get more water time (previously a lot of sitting on the side waiting their turn in a group of 12) for £4.75 a week at the local council pool. Keeping on their beavers / rainbows etc as they really enjoy these and it's a social thing, great value for money at £2 each a week. DH and I still doing our local pub quiz with friends etc as that is good for our quality of life. Ditching the cinema / arcades etc and making use of all the free council events, community centre events, parks locally now and getting the kids out and about way more, for less money.
I was prioritising like this before this cost of living crisis began - basically since the pandemic started we have decided we will be prioritising saving / security & mortgage overpayments, and cutting back anything we can cut and still have the same (or better!) quality of life for less to do so.