When I had a blender, I used it mostly for smoothies and milk shakes, neither of which are complicated.
Milk shake: a few scoops of ice cream of your choice, a dash of milk and whatever flavoring you like. I prefer vanilla ice cream and fresh strawberries or raspberries or blueberries myself
Smoothie: chopped fresh fruit and a splash of juice. For example: fresh strawberries (or frozen berries) and a spash of orange juice.