Is there a shorter key combination than :cn to go to the next item in the quickfix list?

I'm reading through a large C++ code base in Vim.

Within a single file, I can do

/foo
n
n
n

Now, if I want to search through more than one file, I have to do:

:vimgrep /foo/
:cn
:cn
:cn

Now, typing :cn is so much less convenient than n. Is there a way to search through vimgrep results with n (like searches with /) instead of :cn?