Bill, I normally have all that "stuff". Of course you can't boot a tubeless tire!. Later today I'll post a picture of the tiny kit that can be used to plug a larger hole in a tubeless; normal punctures, thorns and such, you don't even notice. I did have CO2, a tool kit, a tube: everything I needed except a tire lever. Funny thing is that because of the stories of tubeless tires being so hard to mount and dismount I had bought one (1) fancy yellow tool which I had carried in my other bag, the other 10 cent levers sitting in a tool drawer. In reality the Hutchinson Sector/Velocity rim combo turns out to be very easy to manipulate.

There are a number of cycling mistakes you only make once: forgetting cycling shorts, leaving helmet at a Starbucks (wife), FDGB on tandem, forgetting water bottle , forgetting tire levers. Unfortunately, as we get older we tend to forget what we've previously forgotten.