A fairly easy method is, when you get a pay-rise, setup an automatic payment that pulls out the extra money you now get, and auto invest it.

Otherwise you end up with what's called lifestyle creep, if you leave it into your bank account you will always find something to spend it on.

It does depend a bit on how much money you were making, but I'd guess it applies to most here.

most people don’t have the discipline to floss their teeth