I have a boy, he wears bows,.. I think he looks adorable with a bow. sometimes I put it at the side of his head,, and that looks adorable also..
I bath once a week..sometimes it varies with weather, or what is going on.. but it is pretty much once a week.. I do not take mine to the groomers.. do not trust them... do not want to leave my dogs alone to sit in a cage all day..
Learn to clip his nails now.. while he is young.. he will get use to it and just do it once a week.. enough to take the very tip off and he will learn to trust you with this..
Any help you will need is right here for the asking.. the more you learn how to do things yourself.. the more money you will have to dress your little man..LOL
Also congrats on getting a rescue.. and your lucky to have gotten one so young..