vim repeat find next character 'x'

I often navigate in vim by `f x` to find next occurrence of character 'x', but overlook that there is a word (or more words) containing 'x' in between the word I want to edit and the beginning cursor position. So i have to `f x` again, which is kind of annoying since there is this nice button `.`, which does repeat the last command. So is there a way to repeat `f x` with a single button press.