I took most of my high vis reflective stuff back, because I rely on lights, and reflective tape on the bike. High vis doesn't help much in the dark. It is great during twighlite and during the day though. A high vis vest and/or jearsy does make me pop out to motorists.
The best high vis clothes are these (yellow in the day, reflective in the dark). I have one pair for the winter, and one with cut out fingers for warmer months. $12.98