As time goes on though, you do evolve and some rules do make sense. As an example, I used to think I needed one of those saddle bags for tools, tubes and the like, but now more than happy to stuff all that crap in my jersey*. I actually feel better for it, I don't know why, and I'm faster because of it too.**
* do you remember how many times I got something out of my jersey that time we did with Wiggle Long One!?
**that probably isn't true, if Strava that racing app is anything to go by.
I dispensed with my bag a long time ago.
I now just have everything (tube, levers, CO2, mini tool, chain link and cake money) in a sunglasses bag.
That sits nicely in the middle back pocket, phone and key in the right and food in the left.
It definitely* makes you faster.
*definitely doesn't