Often they unzip into a folder within that same folder... I have a colleague who simply can't wrap his head around this, causing us no end of frustration...
Why does the U.S.A. allow some terrorists to walk free in Miami, while imprisoning anti-terrorist fighters? (Washington Post) The Cuban Revolution as Socialist Human DevelopmentBrill Books (Amazon Paperback)
I got into the habit of creating a temporary folder on my desktop, move the zipped file in there and then the unzipped file is in there as well and I don't have to search for it.
Then I just move the unzipped file where I want it and throw the folder in the trash.