I am a traditional not-very-early retiree. Most of my income is pension (mostly defined-benefit, not very well indexed). Some is dividends from mutual funds and REITs. Some is RRIF (not a lot, most of my pension room was used by my RSP=pension at work so a small RRSP). My pension is calculated so that when the CPP comes in at age 65, the pension goes down by the same amount. This is not unfair in that the premiums were always calculated based on this payout. At 65 there will also be a small chunk of OAS. Happily there is enough coming in that I am not eligible for GIS.
Basically the pensions and RRIF pay basics, the rest is gravy - mostly lately it went to lawyers, now it will go to deferred house maintenance and some fun/travel.
Just as a comment, my mind boggles when I see some of the salaries mentioned on here. My best year was about $80,000 and most years were well below that. I also had a spendy DH. My living costs are way less than when we were together. Also, as an older retiree I no longer have any child expenses - DD is fully on her own now financially.