How do you clean your mat?

[Placestogo]

Just that really…. And how often?

i am ashamed to say, i have never cleaned mine and it is about 25 years old and i do hot yoga (almost daily)…
hangs head in shame 🥴
it doesnt smell or look grubby though!!!
but sometimes i feel like i should probably clean it…
i worry soap my damage the grip? Or the texture?

I put it in a warm bath with some ecover washing up liquid and leave it to soak for half an hour. Then I tread up and down while the water goes a murky colour, drain and rinse a few times. Roll it up and take it outside. Usually a summer thing so not often.