Help from IT management

I have recently (about 3 months ago) been put in charge of the IT department for one of my companies states. Before this position I was just a regular IT technician, being assigned projects then coming back for more when I was finished. As one of the IT leaders in the company I’m looking for any and all advice from other people in similar situations; anything from how to stay organized, to communicating with senior management, also what to do on a day on day basis. Once again, any input appreciated. Thanks