Originally Posted by
DieselDan
IMO, order of importance:
Helmet
cell phone
Spare tube, tire tools, pump, and a way to carry them
gloves
floor pump
bike shorts
Ability to fix said bike
mini tool kit
minimal tool kit for your "shop"
jersery
cool/cold weather clothing as needed
computer
To answer your signature line, I used double sided SPD type pedals and MTB shoes when I switched from toe-clips and straps. Now I use single sided Look road pedals.
+1
I would insert Clipless Pedals/Shoes before the Jersey...I've got a couple pair of Sidi's with two different cleats just so I can ride other bikes when I visit people, they are IMHO that important...