IMO, it's unwise to show a unit with the existing tenant still resident - - you're showing the mess and clutter which always makes the unit look too small.So, showing for a prospective new tenant I wait until it's ready for move-in (yep, that's a vacancy, but it pays me back with better tenants).Showing for the purpose of selling is another matter and the tenant will have to allow access when given written notice of intent to enter the residence - - knock on the door and then use YOUR key.

Potential tenants have a hard time seeing past the mess/clutter/dirt (or whatever it is) and envisioning it as a nice/clean place for them and their family. 

IE it likely wouldn't make sense to do a trash out and clean up the yard if the most likely buyer is an investor who is going to gut the place anyway (and can see past the clutter).

*Mods, if you feel that this is clutter feel free to lock it or whatever.So below I will start.

You may find that once you empty it out, you'll realize that it was just all the junk and clutter that made you feel like it was a loser.

Plus, tenants get upset when you're forcing them to show the home, and can sabotage showings very easily, lying about problems, clutter and cleanliness issues, etc. 

I'd say they chose colors that don't create any curb appeal at all...In this case the front sounds like it was cluttered, so the way to increase curb appeal was literally to de-clutter. 

because it de-clutters the process and allows you to assign contracts MUCH easier.

They informed me that we probably had to much clutter on the card along with timing of the drop that caused the 0 responses.

It is harder to find good information if the forum is cluttered with low value information.