If you usually send cards out at a certain time of the year (to mark holidays or events), you can create “quarantine” cards. If you already have a list of people that you send your cards out to, this can be easy AND it gives people something friendly in their mailbox. One option is to order cards. You could also draw / make cards and then copy them to have a few to send out. Or, if you want to send online cards, you could make those too and attach them to an email!