Many companies and organisations will need to be able to disinfect packages being delivered to the elderly and others may be also need to take extra precautions. If there is a way to disinfectant packages this will enable far less infections from deliveries.
The best way to do this would would be to model the same disinfectant used within the medical field when they go into a disinfecting room. They are sprayed in a mist of chlorine solution to kill any bacteria.
We need to make this on mass so there should be solutions that use common materials for this.