Another thing I experienced after 6 yrs in the job (renting rooms in London and living no differently to my uni student days, now aged 30yrs), was going to visit a bank manager trying to get a mortgage on my own.
At the time, my salary was about 32k. My take home minus pension, student loan, peak train fares to work etc was less than 1.7k. The bank manager laughed at me when I wanted to buy a 1 bed in Catford... 3.5 times my salary plus my deposit I'd saved hard of 5k per year (£112k + 30k) was just about half way to a 1970s ruin. And that was before the London Olympics. It's miles worse now.
It made my mind up that the hours I was working, the unpaid overtime and the pitiful annual rungs up the ladder with no prospect of a jump required in pay (no matter what I did, there was no school budget and senior posts were being shelved) meant that I'd never have my own home. It was the calling card to quit and stop wasting my good years on a salary that maintained nothing more than a student lifestyle.
When the deputy head on 42k is also sharing a flat with flatmates - not uncommon now - not out of choice, but cost of living anywhere within the M25, it's time to recognise that teaching is a v nice 2nd income or job for someone with family money or a well earning partner, but it's becoming ever increasingly hopeless as an income for anyone with responsibilities like children or elderly parents. Yes, you can buy further away, but teaching isn't a job where you clock 9am to 5pm hours. 1st assembly was 8.30am, 1st staff meeting 8.10am, children outside at gates from 7.50am (who needed watching on rota), staff expected to be prepping for day in their classrooms at 7.45... So, yes, you could afford a 1 bed in Basingstoke, but you'd be leaving the house at 6am daily to do it. Yes, possible for a few years. Not a career span.
I look back on those years and feel they were good 'hobby' years financially.. I made a difference, I learned a lot. But compared to my peers at uni, I was way behind them aged 30 in terms of having a home, having a wife, having money in the bank, and having self respect.. I felt like a bit of a loser at 30 renting a room in a shared house with 3 other people (and their various partners and 1 night stands), suffering ever changing flatmates having sex on the opposite side of my bedroom, having my possessions nicked when I was at work by people coming in and out of my home, and contemplating begging my parents for a handout...
The mortgage interview really was the moment my life had to change. The world, the financial world, the world away from 'goodwill' and 'vocation' quotes (senior management team bollocks) had moved on, and I had to as well...