I see that this is a sagged ride; but some of the sagged multi day rides i've been on, they dump your bags on the ground outside when they get to the next destination. If they do this, you need to have a large water proof bag to put all your gear in or your stuff will be wet if it rains.

I used lots of little bags to keep my stuff organized; and used a small backpack to carry my clothes to the shower room. I have one of those toiletry bags that is foldable and also hangs up on a hook. This is very handy in the shower since you can hang it up on the hook along with your clothes and everything is nice and handy. I packed one biking outfit in each bag for each day; and then another bag for all my gloves; and another bag for all my leg warmers/arm warmers; one for my socks, etc. It works great.