Any way to disable the automatic unzipping when you download a zip file?

For example, say I want to download a .zip archive, and have it stay a .zip archive so I can upload it somewhere else.

The problem with re-zipping it is that I don't want it to be a Mac .zip file with bogus resource forks and DS_STORE files in it (for Windows users). Any zip file you create on a Mac usually has these bogus extra files inside it - confusing to Windows users. If I download a Windows .zip, I want to keep it as a .zip that was zipped on Windows, if you follow me.