There was a recent thread about finding Venus in daylight and I mentioned how easy it was to spot when it was next to the moon. At the time I thought it was because my eyes were better *focused* on infinity by having the moon as a reference. But in recent attempts to find Venus I realized that it was almost invisible until I spotted it, at which point my eyes *aligned* on it stereoscopically. So I wondered if the main benefit with the moon was that my eyes were aligned on infinity so that both views of Venus matched up. Even if your eyes are focused on infinity, if they aren't aligned your brain just doesn't see it because the two separate images don't match.
So I tried finding it with one eye shut - and it seemed to help greatly. Is this a known method? Give it a try and see if it works for you, since Venus is pretty far from the sun now but will sink soon.