I'm also very new here and to smoking in general and have learned a lot from these forums in my short time. I bought small plastic containers for my wood too, but I waited till I got the wood before buying them so I was able to get ones with holes luckily. Just cut a few holes on all sides and leave the tops off, that should be good.
One mistake I made was for brining and luckily it didn't go too badly. If you haven't brined anything yet but plan on doing so, buy a container... I stuffed a Boston butt in a 2 gallon ziplock bag with over a gallon of water. Managed to prop it up in a drawer of our fridge so it didn't tip over and pop the seal. Had some minor leaks but it stayed in the drawer so the wife didn't kill me. I bought a brining container on Amazon that day. The container was so much better the last time I brined. If you buy one, make sure to check the measurements to make sure it'll fit in your fridge.