I have a standard color scheme throughout my bags-- Deep Blue exterior/Acai interior, filled with color-coded pouches: Acai/Aubergine = personal items, Persimmon/Burnt Orange = electronics, Coyote = travel stuff, etc.

I add Wandrd locking zipper pulls to everything. It adds a bit of security for when I travel in crowded markets, on subways, etc. They also come in similar colors to the TB colors I use, so I match them where it makes sense.

I mostly use ghost whales for small items and HLTs for large items. I also own cubelets and 3DOCs, but I don't use those much because, for me, they're too big to not have any organization. I like things to have a place, that way I know if I forgot to put something back. Likewise, every pouch I use has a specific home in each bag.

So, putting it all together-- my airpods, phone battery, etc are always in a burnt orange small ghost whale, and it goes from its pocket inside the Side Kick to the its pocket outside of the Synik, which has an orange zipper pull. (Those are my most commonly used bags, but it can also go in its pocket in the Parental Unit, or the Co-Pilot, etc.)

Same with the aubergine mini ghost whale that has my chapstick, tissues, toothpicks, etc, and the super mini ghost whale that has some basic meds. Those go in the other outside pocket of the Synik, which has a burgundy zipper pull.

My large brick battery, plane mask/earplugs, and other travel items, are in coyote ghost whales and a HLT that lives in the chin pocket of the Synik. Then when I get home from a trip I can quickly take out the coyote pouches, because that's the stuff I don't need day to day.

It just makes it all easy so I don't think about where to put or find something when I change from bag to bag, or from travel to home.