Weekly costs have reduced from when working (no travel expenses or lunches out) but heating costs are greater as I spend more time at home.
I've never wanted to go on packaged, organised or hotel holidays (spent far too much time in hotels in 20 years of working throughout Europe) but a couple of years after retiring I bought a motorhome and still exploit the opportunity to have spontaneous long and short periods of travel, always abroad where motorhomes are welcomed as I live just a 30 minute drive from France - (well, a 30 minute drive from the Newhaven ferry port - same thing).
I do have private pensions (I lost an £80k fund when Equitable Life went tyres-up)and the Gov't pension, plus cash ISAs now paying around 5% tax free interest which I draw monthly.
Since retiring I haven't needed to draw on my capital except for giving some lumps to my sons for house deposits and extensions, new cars, private surgery......etc. (More satisfying to see them benefiting now instead of losing it through Inheritance Tax).
I live quite frugally and there's nothing I need or hanker after and each month I always seem to have a few hundred left over after my monthly expenditure of around £1800.