I recall reading a thread by healthcare professionals, expert in viral diseases during the onset, not sure where exactly. They were basically saying that the virus can only linger on surfaces for max 3 days. Knowing that fact stopped some of my paranoia about packages.

Articles that I read indicated that a simple cloth reduced transmission by infected person by about 50%. Humble fiber dense cotton cleaning cloth, by 70%. Multiple layers were even more effective.

My research indicated that salt would disintegrate the virus. I made my own masks and spread very fine salt made in coffee grinder on them and my gloves to improve the effectiveness.

So far so good.