Hey, struggling2!
I have the same issue with you. I only get to see my T once a week for 45 minutes and I can't afford to see him more ofter. Mine also doesn't do email and we have no contact whatsoever during the rest of the week.
You can also ask him (that's what I did) if it's ok to write to him during the week, kind of a journal, and give it to him so that he can read it during the rest of the week and discuss it with you on your next appointment. This way you won't forget about anything important you need to share, plus you get to write it down and express it when you feel you are in the mood for it, and not necessarily during the 45 minutes of the session. I think it's a good way to feel close to your T when he's not around.