In case your vet didn't mention it, don't take her for walks. You are okay to ex her in the yard but you don't want to attract the local doggie lotharios. Once she is finished her season watch her for signs of pyometra. Usually seen a few weeks after her season and can be as little as drinking more, lethargy or vomiting. I also don't bathe in season bitches. I don't want to introduce bacteria into the area. You'll get through it and hopefully she will be a clean bitch - cleaning herself often and not much hits the floor.
but have to ask if pyometra is more common following a first heat? (this will be the ONLY heat, believe me!). As to the bathing--so far she's keeping herself clean. I haven't even had to use the 'pants' yet, although she has a beautiful pair in purple flowers waiting in the wings 