In our database, if expired members 'renew' (or rejoin) after their grace period, on their contact page, on the memberships tab, it shows both an expired membership and a current one. That is correct, I suppose.
If we then do a search for expired members, the rejoined member shows up. That is also correct. We would have to remember to always search for 'expired members - current members' to find those members that have expired and never rejoined.
People are going to forget this. What is the best way to help my client to not forget this ?