If your kids go to a school where they have yearly agenda’s you could ask the school how you can get to be in that. I have magnetic signs on my care but really get next to no business off of that, just makes me have to be nicer when driving,lol. Go to daycare centers , gas stations, hair dressing salons and small boutiques and ask if you can leave your business cards. Some places have notice boards just for those type of things. Make flyers for some of those types of places that offer a small discount like 10% for first time cake. Let your local police station and fire station know you offer a 10% discount for first responders if you do offer that. Make sure you have a fb page and webpage, they have been where I get most of my business. Hope that helps, good luck.
Tampa, Florida facebook.com/pages/curiaussiety-custom-cakes