You may need that shampoo and conditioner sooner than you think

These little ones tend to start looking a little scruffy about a week after bathing, or at least my girls do. Depending on his coat, you will want to brush him daily to keep him from matting.
Is he potty trained? You may need some pee pads.
Definitely use a harness for him and not a collar. The collar is fine for wearing his tag, but not for walking.
Congrats and Happy Birthday!
Can't wait to see pictures