Include the 'days of school' count as part of your calendar routine. My students add a popsicle stick into the 'ones' cup (and elastic them together once 10 are together, and move that batch to the 'tens' cup) each day. Once the stick is in, student removes everything from the cup and students count together.
The numbers I've attached here are for students to refer to, to make sure the sticks match. Teacher will have changed it over before school starts.
This is great for reviewing place value, where students can physically see how each number belongs in each cup.