thin unpadded running tights over bike shorts for "transitional" weather when its too warm for thicker cycling tights
softshell (breathable) jacket for dry weather days < 45F
balaclavas for < 45F

I wear summer riding attire for days > 53F (sun, low wind, no precipitation).
$10 flimsy string backpack where I'll want to shed a layer / rides start 45F end at 70F.