Carry your recorder everywhere. Everywhere. Post office, sorting office, supermarket, car wash.
There is a caveat to this piece of (excellent) advice, however. When you carry your recorder everywhere you are 10 times more likely to lose or misplace said recorder, and this can become quite an expensive extravagance. I have learned this to my cost: in a period of eight months I have left one Zoom H4N Pro on a beach in Aberystwyth and had another mysteriously fall out of my backpack somewhere. So, I will be more careful in the future. I have moved to an H6 recorder for everyday stuff (i.e. in my bag all the time), but it’s quite big. The upside of this is that it should be harder to forget somewhere, and I should hopefully hear the almighty clunk should it happen to fall from my bag.