I've thought about this often, since I'm in a position where my job is tolerable but definitely not something I love. I would be willing to take a pay cut (even a large one) and delay FIRE if it meant having a job I loved, but the problem is that I don't know what kind of job I would love (or even mostly enjoy). I've thought about perhaps moving into the non-profit space and getting out of corporate America, but there's no telling whether I'd like that any better and then all I'd have to show for it is less money. I've changed careers twice btw so it's not that I haven't tried. It's true that I haven't tried self-employment, but I think I will save that for when I'm mostly FIREd since I'm pretty risk averse. Would be interested in hearing other people's thoughts on whether they were able to find a "dream job."
I'm very close to having a dream job, although I think of it as more, "I can't imagine a different job that I would be more suited to". i.e. it pays well, doesn't have too many hours, and I find its work mentally stimulating and rewarding - but, in spite of that, I more prefer the days when I don't have to go to work.
In practical terms, it means I'm not in a great rush to retire, but I want to retire, so at the moment I'm targeting end of 2022, when I'm almost 53.
I can do that, without changing my lifestyle very much, and so I'm really not very motivated to work 'hard' at cutting expenses. I've always been a don't buy expensive cars, don't take expensive holidays, don't buy new phones, mainly eat home food sortof guy, so naturally I've saved money, and will continue to.
But, as examples, I do have cable TV, but on an AUS $60 per month ($US 48 per month) package - mainly because I like to watch football; every Friday is take out dinner night...
In contrast, if I hated my job, I'm pretty sure I could trim back on my expenses to retire tomorrow, but given my 7 year plan, and how much I like my job, I don't really see any point.