* eating: eat while you work or do something else; plus it also allows you to skip your lunch break at work, get more shit done and go home early.
* cooking: don't. If you live in a major city there should be a few healthy (not fast-food crap) takeaway options available. Just order while on your way home and dinner will be there shortly after you arrive.
* bills and bank related activities: switch to a bank that doesn't suck. I use a fully-online bank called Monzo since more than a year and I honestly can't remember the last time I actually had to spend more than a handful of minutes for "banking" activities. Ditch suppliers/utilities that waste your time for those that get out of your way.
* budgeting: again, try to find a bank with an app that does it for you or makes it easier.
* cleaning: outsource it.
* car upkeep: if in a major city ask yourself if it's worth the trouble to own a car. In my case Uber works out fine.
* pet upkeep: don't get pets? I love cats more than anything else and yet even I don't get one because I barely have time for myself, let alone the cat.
* general repairs and replacements for things breaking or going obsolete: outsource it, order online, etc.
* religious activities: don't?
* home upkeep/renovations/gardening: outsource it?
But I'm definitely interested in others' perspectives on this and how they solve this problem.