This may be today's least original comment, but I've recently discovered the magic combination of podcast and treadmill. (I knew them both, separately, for a long time already.)
In addition to helping make 30 minutes of sweating go by much faster, I find it almost always generates a bunch of ideas. Like a little brainstorming walk, if you will, but all-weather and easier to schedule.
My current favorite podcast for this is the Andreessen Horowitz "a16z podcast."
The combination of (roundtable discussions|debates|audiobooks) with (walking|cleaning house|washing dishes|other chores) is the most productive procrastination technique I have. It changes mental context, stimulates the brain, and makes the chore enjoyable. I even sometimes do it while writing code. Of course, I can't take it all in, but I still find that it enriches my experience.
I'm still not sure I approached a meditative state by "meditating". When I play drums I do get into a slight trance / bliss where I kinda become music and my mind shifts off.
The key to flow/meditativr-state is sussposed to be fitting the processing capability someone's brain has , to the task. That way all of your attention is given to a network called "task mode network" and no attention is left to the "default mode network " (which is resonsible for mental chatter and self in past/present) so the brain becomes quiet.
So maybe there's a way to make chores more demanding of attention[1] ? Like deciding to do them in a different way or focus on more/different details ? Maybe that's why the Japanese tea ceremony is so complicated ?
[1]As drumming is , altough maybe there's something meditative about music?
I do that all the time. I think I did this from birth. Anything boring I twist it to make it "interesting". I achieved supposedly a 10x throughput increase in my last mission (stupid job though) by applying checking constraints so tight it was a choreography.
This doesn't work all the time though. I believe there are limits to ones ability to influence it's mental state. Last year, very sick, I could sense the calming effect of meditation. But tonight for instance, after a violent incident, my mind is racing.
Some of it from internet research about flow, so hard to pinpoint specific material. Some of it from this very good youtube lecture: "the end of suffering and the default mode network" .
Audible 2x during any walk or mindless activity means you can easily get through a book a week without any lifestyle changes. Literally has changed me life.
I do all of my podcast from 2-2.4x depending on the speaker. Silence skipping gets it to an effective 3x speed. Most people hear me listening for brief periods and wonder how I understand any of it. It's a progression to get there, but it is totally doable. I'm sure some people can go faster, but I just tell them to go up .1x at a time until it sounds right.
I use podcast addict on Android and have for years. It's a little on the techie side with all of its options, but I have it mostly set and forget I really just adjust the speed per podcast which it remembers for you once you set it. I have the paid version which I recommend.
I actually got into audiobooks because of walking. I am preparing for 100km walk, so I walk a lot (and by a lot I mean 2-5 hours walks). And while walking in silence can be quite enjoyable and meditative by itself I felt that too much time was wasted. Audiobooks make a great companion.
In addition to helping make 30 minutes of sweating go by much faster, I find it almost always generates a bunch of ideas. Like a little brainstorming walk, if you will, but all-weather and easier to schedule.
My current favorite podcast for this is the Andreessen Horowitz "a16z podcast."
http://a16z.com/podcasts/