This list is from a Camino training provided by Anita Baroldi, who has walked 5 times in the last few years.
Don’t “carry your fears” in your backpack. Plan for the best case scenario and pack light. You can easily buy anything you need along the way.
Pack items in same category into small bags-REI Eagle Creek.
Bed & Bath
Bath towel-REI-Ultralite Mini Towel
Sleeping Bag/Cocoon Travel Sheet
Clothing-mostly synthetic for layering-it dries quickly
Travel dress for evening or sleeping-light weight fabric
2 tank tops (with built in bra) /2 light weight shirts-REI Hardwear
2 Shorts/capris/zipper pants
Socks-REI no seams-Seirus for cold and wet weather
3 pairs SmartWool anklets
Wind-breaker-Houdini It folds into a pocket.
Boots-Merrel Many people don’t like the heaviness of boots and prefer TEVAs
Flip flops for shower
TEVA or Croc sandals
Backpack-Osprey Talon 22 liter, rain cover
Hat-bucket hat/waterproof baseball cap
Money belt or pouches-to carry cell phone, money, passport-Amphipod
Walking poles with cork handles, some like springs
First aid kit-moleskin, toe gel caps, antibiotic ointment-pharmacies have everything
1 roll toilet paper-remove tube
Travel size shampoo, deodorant, toothpaste, tooth brush
Vaseline in tube-some recommend rubbing into feet at start of day to prevent blisters
Smart Phone-serves as your camera, address book, flashlight, calculator, alarm clock, dictionary, guide book. . .
SIM card-buy there for local calls
One-way ticket-not much extra cost and gives flexibility
Fly into Madrid/Barcelona/Paris