The CDC says that coronavirus does not spread easily by touching contaminated objects.

[Sunsky]

51. Cleaning is good

I'll continue to clean everything. As a healthcare professional, I take no pleasure in saying this, but I have no trust in this CDC. I think public safety have taken a backseat to facilitate the wishes of the Trump admin.
I also believe the directive released last month is ambiguous and creates confusion. Why post something you're unclear about, with a lot of if, buts, and maybe (that's my interpretation of the article)? It should not have been released. However, it did not say the coronavirus cannot be spread by surface contact, it stated (without evidentiary data) that surface contact was not the main mode of transmission (direct contact is). The release also suggests that surface contact transmission may still be possible. Therefore, the public is still advised to routinely clean surfaces as a preventative measure.
https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-covid-spreads.html
I fear that some people may misunderstand the release and stop cleaning surfaces. Some in the media are already suggesting that we may be over cleaning but, with a viral pandemic it's better to err on the side of caution.
The new CDC reopening guidelines also stresses the importance of cleaning surfaces. It also recommends not using or sharing maps. I didn't even think about this. Those maps at the front of malls, in theme parks, bus route etc; are high contact objects.