I find that the key to this is to feel that your work is done, organised and under control, so that when you leave you know you’re not going to come back to a big hairy mess to sort out. Note I say FEEL like, it doesn’t mean you have no work left to do, it means your state of mind is that it’s ok if you’re not there for a day or however long you’re off in your working pattern.
You need to work out what this means for you. Do you need to have all your work planned? Do you need to have a to- do list? I find those help for me. For instance, I’ve just started two weeks off for Christmas. I have lots to do when I go back to work, so I spent my last working day reviewing everything and making a thorough to-do list for the NY.
Other things I do include:
Being in control of when I am contactable out of work time. This meant making it clear to colleagues/manager that I was not to be contacted on my personal number at all, and blocking their numbers if they didn’t respect this (only one person in the end) Now I only use my work phone for all work communications including whatsapp groups etc. I switch it off when I’m not at work. This was a major change for me, and took away the constant intrusion.
Sometimes I do find myself thinking about something important work related that I need to remember - I send myself an email at work so I know I’m not going to forget to do it, and I’m not having to hang on to it in my own mind until next work day. This works really well, and I’ve suggested it to other people who have also found it useful.
I work at home a lot, so it’s easy to have the laptop out and on all the time. I’ve become very strict about this now. I designated a place for my laptop to live when I’m not working, and at the end of the working day I switch it off and put it away every time.
For me, it’s about boundaries. You need some for other people, some for yourself.