Mine is a one-man shop, primarily online, so few things change here. But until the virus has subsided (due to vaccine or whatever), mandatory masks would be much more beneficial. From all I've researched, masks provide healthy people only partial protection against getting the illness. (N95 masks included, as the virus can enter through eyes.) Masks are more effective at keeping infected people from spreading the disease. With up to 14 days for symptoms to show, and some people being asymptomatic carriers, spread can occur through people who feel fine. Mandatory masks in the workplace should do a lot to keep people well. Optional masks might do something... but I expect only the committedly cautious would wear them. (It's not like people want to wear them.)