Need Advice on Multiple Businesses

I'm new here and really enjoying all the great posts. I'm venturing into some business ideas (part time for now...in the hopes of retiring from my day job one day soon) and I recently got a business license and dba for my craft type business to sell at a summer outdoor market each Saturday. I'm also starting a personalized candy wrapper business which has already generated lots of interest in just two days. Do I need a separate license and/or business name for it? It is good to place all business endeavors under one umbrella (if they're similar in nature) or keep things separate? I'm new at this and need a little advice from those here who run more than one business at a time.
Thanks! Joan