When copying a directory, and the file already exists in the intended directory, a popup appears with the options skip, replace all, cancel or replace. A good alternative instead of having to continually press skip, may be a skip all option, which would skip all those files that already exist in the target directory.

it's just a suggestion from the lazy of us, who copy a large number of files ot a directory as backup, and some of the files there might already exist.