I like riding at night - mostly unlit country lanes - and I haven't made much of an effort outside of being legal. My pedals have fore and aft reflectors, I have very good bright StVZO dynamo lighting with a reflector built into the rear rack mounted lamp and the headlamp suitably angled so as not to dazzle. Both lights have a standlight feature. Sometimes I have other reflective surfaces on clothing or bags but this is not actively pursued when purchasing said clothing or bags. I do feel better making hand signals if the gloves/forearms/cuffs have reflective elements. My tyres have the reflective sidewalls (again, not actively pursued) and I have to say that on seeing bikes so equipped when I've been a car passenger at busy large urban junctions, they are very noticeable even amongst the plethora of lights, reflectors and wet-tarmac reflections.
My lights are always in steady mode and my personal unscientific observation/impression is that I get more consistent consideration from motor vehicle drivers at night than in the day - so much so that I feel safer - but this might also be due to my being more aware of them on winding country lanes before they are in sight because I can see their lights and hear the vehicles too (I find it easier to hear motor vehicles at night, maybe because it's quieter then and there's fewer of them). I think they might be generally driving more cautiously too.
I really do feel that good lights and reflectors that meet the legal requirement not only should be good enough for the job but are good enough and if another road user doesn't see you with these, then to a great extent, anything beyond the legal requirement (whilst staying legal) is not going to be a game-changer.
I've always felt uncomfortable about the modern practice of putting white/silver reflectors on the back of clothing and bags rather than red/orange/yellow reflectors.
