Bonnie, I also agree with the carry on logic....unless we are on a long cruise or ski trip. The comfort level of knowing your stuff will be there is a huge psychological thing for this worrier! I am cruising with my daughter in March and will be doing the carry on then. I have not considered the "throw as you go" notion except underwear, socks and sneakers. Will reconsider things going to Salvation Army and try your system. It sounds great!
Cheers, Pam
PS How do you do this on a cruise?
