Man. I can never seem to get my lens clean enough. Its only a problem if im shooting exteriors. I always get small specs or smudges. And the lens cleaner i have leaves really bad streaks. Maybe i should try some other lens cleaner.

I'm using Zeiss lens cleaner...

another option would be to go to a eye glass store.... maybe lens crafters...

they all have very good lens cleaners and most should be able to furnish a
proper cloth for cleaning also...

Anything by Zeiss sounds like a good idea ;).

But, IMHO, avoid using eyeglasses lens cleaner. Cine and photo lenses have coatings that eyeglass lenses don't have.