For commuting in the night, in addition to bike lights, is it worthwhile putting on some reflective tape like:
On the bike, and on my backpack?

THKULKME 2" X 100ft DOT-C2 Reflective Safety Tapes Silver Adhesive Reflector Tape for Trailer Cars Trucks Outdoor Waterproof (Silver100FT): Amazon.com: Industrial & Scientific
THKULKME 2" X 100ft DOT-C2 Reflective Safety Tapes Silver Adhesive Reflector Tape for Trailer Cars Trucks Outdoor Waterproof (Silver100FT): Amazon.com: Industrial & Scientific
www.amazon.com