In addition to some of the things mentioned previously, I appreciate my Silca Premio tool roll - the Boa retention system is nice when you have to access it. They just released an updated version and they also have a more conventional bag with a Boa, but I prefer the more old-school aesthetic of the roll.

Also from Silca, but not something that I own (yet) - I'd really like their Ti Torque set. Totally a luxury for the tool bag/roll, but also kind of needed with all of those carbon bits on the bike, right?