One thing I've done recently came after one of those "oh, that is so obvious" moments last year, where my therapist pointed out that I had just described to her a very, very full week of various things happening and that it was not unreasonable of me to not have found time to hoover and clean my apartment on top of everything else. We also talked about how draining almost every on of those various things had been and she asked the deceptively simple question of what kind of things would give me energy rather than draining it. It's a work in progress but I now have at least two appointments per week in my diary for noodling* - what exactly that is is still a bit fluid but among other things it's ukulele classes or practice, reading (actually sitting down in an armchair to read a proper book as opposed to reading while eating or travelling), writing (just blog again for now but have plans for other stuff, too), actually colouring in some of that adult colouring book I bought a year ago, or putting some music on and just sitting and listening to it (as opposed to just having music as background noise).
A walk on the way home is a great idea, too. Do you have any time during the working day to recharge a bit, or do you work straight through? If you could incorporate a short walk during lunch, that can also be helpful.
* The term came from someone else mentioning it was nice to just have time to noodle around sometimes. :)