I think drivers should have to pay more attention and spot the bleeding obvious, but if you're a cyclist hit by a motor vehicle it's not the way the system works.
I'm now moving up from two rear lights to three, including a flashing one on my head. Cyclecraft may say more than one is unnecessary, but given the views of the police and solicitors I'd prefer to look like a mobile Christmas tree!
I'm also adding extra, automotive reflectors to the bike (automotive reflectors reflect more light from a given surface area than cycle reflectors). I already exceed the minimum legal requirements with three rearward and two front reflectors, plus reflective strips.
I'm now moving up to six rearward red reflectors, at least one and possibly two orange reflectors to each side, and four forward white reflectors. I also plan to add reflective chevrons to the existing high-vis and reflective panels. (My tyres also have reflective stripes!)
I currently wear a reflective sam brown belt. I intend moving up to a jacket with reflective strips, overtrousers with reflective strips, gloves with reflective strips, a new sam brown, and reflective ankle cuffs. (All have high-vis material for daylight visibility as well.)
So far, I look like this...

If I get hit again, no one is going to accuse me of not being sufficiently visible!

