[bangboombang]

Yes! Just take a lot of photos over a couple minutes (depending on how busy your scene is) from a fixed position, or just a video if you're lazy, then use imagemagick and combine them using "median" (NOT average). It's not always perfect but can deliver most of the time. That way even a command line dork like me can do it. :-)

[ansgri]

A similar simple trick allows to reduce reflections from photos of flat objects under museum glasses (books, pictures, coins): take several photos from slightly different angle, co-register them using some panorama assembly techique (I've used a simple Python OpenCV script) and merge with minimum or some bottom quantile, since reflections are additive.