When I was doing daycare as well as cakes on the side I sold a lot of everyday cakes, pies, desserts. My parents would request things for no particular reason other than they had a sweet tooth. I got where I kept several flavors of 9' rounds in the freezer at all times and could whip up several at nap time. I also had a couple base cookie doughs frozen that they could customize with a choice of add ins. My regular cake customers would call too, but not nearly as much my daycare parents, their families, and my neighbors.
When it would get near the holidays I would get tons of orders for cookies, cakes, pies, candy etc. My oldest two children loved when I got swamped because they love to bake (my oldest son is now in school to be a pastry chef) and they got paid to help.
I think it's important you have a good product. I live in a VERY small town; we had a place called Whats for Dessert open a couple years ago. They had a selection of realy good home made tasting cakes (not decorated variety), cookies, brownies, simple pastries etc. Their business was booming, but then they switched to what tasted like prefrozen products and eventually went out of business. In a small town like this everyone talks and they kept saying " What happened to the good stuff?"