@Maureen83 I think extraneous items should go. A multitude of throw pillows (especially when people do that thing of piling up throw pillows halfway down the bed, which simply get taken off and put back on each day, which has always seemed absurd to me, anyway) . Fine to leave a few on the couch that people can use behind their back or neck to make themselves comfortable, but all should have removable, washable covers, maybe with spares so everything doesn't have to be washed right away for a turnover- in fact, you wouldn't even need to wash throw pillows, as long as they looked clean, if you just put them in a plastic bag, tied up, for several days.
Hosts might want to change out upholstered furniture for furniture with easy to clean surfaces. A wooden futon couch with removeable, washable covers seems like a better idea than an upholstered one.
I'd also get rid of purely decorative items that people might touch, so there's not so much sterilizing needed. I'd not leave piles of extra towels and bedding in the closet, or a lot more kitchen gear than necessary. If you host for 4 people max, they don't need a tablesetting for 8. Coffee, tea, oil, etc, could be put in glass containers which can easily be wiped down with a bleach solution. Supposedly the virus doesn't survive on food itself. If you've been providing 15 different condiments, cut it down to 6 basic ones.
I think it's going to be a challenge for many hosts who have entire places filled with stuff, and pride themselves on the decor, to reconcile making it a bit more barren with not creating an intense cleaning situation for themselves.