When I was 40 I joined a big company with a good pension scheme, up to then I had no pension. It was my first 'proper' career job after a break bringing up children. As it meant a big payrise, right from the start I immediately paid most of my extra salary into AVCs (Additional Voluntary Contributions) to the pension scheme. Having never received the extra pay, I didn't miss it and I did that every time there were wage increases.
I hoped that I would be with the company until I reached retirement age, but 12 years later the company had to halve in size and the redundancy scheme was very generous, including pension uplifts for the over 50s. I could see that there was little future for me with the firm and so I left, but because I had paid maximum AVC's, for those 12 years, my occuptional pension with my state pension means that I now have a comfortable pension income.