Well, one word comes to mind when packing for an out of state workshop. SIMPLE. I normally only carry bare minimum clothing, underwear, personal items, food/snacks, phone charger, and a good book.  I figure if i forget something or discover i need something other, i can purchase it there. In the photo is my entire backpack contents for an out of state weekend workshop. The only other thing I will add to this is a set of gymnastic rings, some chalk, and maybe another bar of Dark Chocolate.  KEEP IT SIMPLE STUPID (KISS)