I've wanted to start this thread for a long time so here it is.
Each of has encountered bicycle stuff that has been absolutely fantastic or perhaps less that what it appeared at first blush.
Here's a chance to sound off....I'll start one.
Aluminium water bottles make a huge racket bouncing around in a bottle cage. As someone else here also said, they lack that "squeezeability" factor for drinking or spraying water on your head. on a scale of 1 to 10 a 2