I fly out to other cities on weekends to party. Berlin, Paris, Reykyavik. London is a great launchpad to check out other cities.
I'm saving & building passive income (developing mobile/web apps and charging monthly fees) so I can do this perpetually, Once I hit £10K a month passively I'm going to cut the cord and leave for good.
EDIT: I'm 27, 4 years experience as a backend software developer
£150k at 27 sounds exceptional unless you are a contractor.
Previously a Java back-end dev, then Security Analyst, stint of consulting and now FTE Sales Engineer for approx 3 years.
Last year I made around £175k. This year I will definitely make at least that, but it's likely I'll be closer to £200k.
My total package is broken down roughly as 50% basic salary, 25% commission, 25% stock vesting monthly which I auto sell and take in my pay slip.
I have quite niche skills in IT Security, and I'm consistently ranked at the top of my team worldwide. Working for a major company.
My first job out of Uni was with a (terrible) civil engineering firm in Merseyside that paid £19000 when I first joined. I was just happy to be getting my foot in the door.
I work in Finance and make half of this so it would be interesting to know where the ceiling is.