Shower or bathe together, then your both clean for a bit of oral fun ;)
I wouldn't reccommend a set day every week, it put pressure on you both to perform and that might not be so good for your DH. Let it happen naturally.
Shower or bathe together, it is possible even in the smallest of showers and may just end up with the both of you giggling like school children if your shower or bath are particulaly small, but that's good.
Don't have any expectations either, if all you do is shower and cuddle in bed then so be it.
Next time shower, cuddle and kiss
Next time shower, cuddle, kiss and touch
Next time shower, cuddle, kiss, touch and lick (or suck)
You get the drift, just let things happen naturaly and don't expect earth shattering orgasms.
FWIW, I'm a bit concerned that you have not talked about how he fulfills your needs. It's important that you can both tell each other what turns you on and the fact that you have said
"He always says I fulfill his needs in bed but he doesn't ask if he fulfills mine, which he hasn't done for some time now."
This makes him look like quite a selfish lover. I hope this isn't the case.
Sometimes these things can be hard for sexual partners to talk about (it shouldn't be hard but I get that it is)
Maybe a text, E-Mail or letter is a 'soft' easier way of starting communication about this subject