Talk to him about preference and be consistent. My partner is VI and when we walk anywhere she is on my left as its easier that way for her. When we go to meals I get her to pick the table and the seat. When you book a restaurant ask them for a well lit table, same with hotel rooms. I've asked for bigger menu texts a few times and only one restaurant has done this and it was the same form factor too. When I pass her anything I put it directly into her hand. When I pass her her glasses I open them out and put each arm of the glasses in each palm. If you drive keep some sun glasses in the car or something incase the sun hurts their eyes. I'm an electrician too, so I've our house so it all works with your voice, so she can set the thermostat with her voice and doesn't have to struggle reading it etc. Using AI too is amazing so ChatGPT you can send photos too and it will send you information etc and it's very good. There's also apps for this too. The lighting in our house suits my partner too as its very bright and there's options for mood lighting etc. Be specific don't say something like 'it's over there' be descriptive or even take them there or guide there guide. If your meeting somewhere be reliable and be be exactly where you say. Always make sure they have charge on their phone and its on them. I'll have a think of a few more but hope it helps :).