M.C.
My son is 5 and is starting full time Kindergarten as well.
I'm from Germany and we have a nice tradition, that is making the transition a little bit easier.
It is called a school cone, and is filled with nice things,whatever you want to put in there,school supplies,candy,books,stuffed animals,you name it.
As a matter of fact, I made one myself today.
You can go on that web site,Kindercone.com and just see, how they look like,they have website with instructions, just google school cone .........
I didn't use any instructions, and thought I was going insane, building it.But it came out great,I used a beach,surfing theme.
Good luck