Hi, I'm building a simple CRM for a dog walker who offers walks in 10-packs. I'm getting confused with how to track these 10-packs.

My first thought was to create a Walks table with 10 columns (Walk1, Walk2, ..., Walk10) and the date of each walk would be populated as it happens and there would be a formula field to count how many of those columns had been populated so we know how many walks have been completed. But the dog walker herself is not very techy, and to avoid her having to go into the base, I'd like if she could use a form to simply select the dog's name and write in the date of the walk. I have an Owners table and a Dogs table, and I know how to create a form where she can select which dog it is from a drop-down, but I'm getting stuck with where/how the walk dates should be stored. I appreciate any tips, thanks in advance!