I've never carried zip ties myself but I had a friend carry a whole bag of 'em on a cycle tour once, and he sure did use a bunch of 'em!
In particular I remember he used quite a few on his panniers.
Coil 'em up tight and maybe stuff 'em in their oun little baggie to keep 'em that way?
I’m surprised so few folks carry extra cord! What, never need to replace a shoe lace? Add an extra guy line to the shelter for bad weather? Replace a busted D ring or something on the pack with a temporary lashed fix? I used to always carry plenty of para cord for such things but carry a hank of spectra cord these days.
I also stow my extra fire makings and compass in my “repair” kit, so maybe it is more of a “what-if” kit!
I lives in a small ziplock bag and over the years seems to have gathered the following stuff -
Patches / glue fer thermarest pads.
Sewing kit - This packed in a small plastic tube and contains two needles, heavy button thread, two pins, two safety pins, and I think two buttons but I'm not sure!
Gorilla tape - The narrow 1" kind, about a foot I guess, wrapped around the sewing kit.
Book of paper matches in its own tiny zip lock bag
About 8' of strong, thin cord
One trioxane fuel bar for use as an emergency fire starter.
Silva compass, the tiny .9 ounce one with a sighting mirror.
I think that's everything. It weighs about three ounces and rides inside a small stuff sack along with my first aid kit, which is contained in another ziplock bag.
Edit - I used to carry the MSR wrench and a spare jet in the stuff sack fer me Whisperlight, but now that I use a Trangia they are a ting of the past!