First, I made sure to assign each student their own iPad. I have a class set, so my six classes of students needed to share them. They are all responsible for their iPads and I know if something is wrong, I can narrow down who might have made any changes. I also gave each student a log in sheet where they wrote their assigned iPad number and any user names and passwords for different websites and apps we were using. My students were hesitant about writing down their passwords, but it has come in handy many times for MANY of my students.
too big for the Breton cart - one iPad in a cover would fit in its slot, but not all of them next to each other. Amazon let me return them, and I ordered another set of covers. These ones included a clear back case (which allows the iPad number to show through) and a black smart cover (an apple knockoff). They fit in the cart and allow the students to cover the screen when I am talking to them and want their full undivided attention. The iPads tend to be a little distraction when they are on and in front of them.
Next, I added sticker labels to the cart. The Breton cart had numbers in the metal, but they were above the iPads. Students seem to have a hard time putting their iPad in the correct slot, since the number is too high above the iPad. The stickers were easy and ensure the students are putting their iPads away correctly, I placed them right in front of where they slide their iPad in.
The iPads get smudgy and lots of fingerprints on the screen, so I purchased some inexpensive microfiber cloths to keep on the cart for students to use to clean the screens.
When students are in groups, I don't always want to hear their iPads, so I purchased some Belkin earphone splitters.
I am sure there are more things I will learn as I continue to use the iPads. My next step is to make a background screen for each iPad with the iPad number.