how did you make those cool backgrounds with a million copies of an icon or piece of text scrolling past each other?
tile the thing, save as hi res image, by the way if you don't have any tiling software, you can just copy then copy them both and then copy all 4 then copy all 8 and 16, 32, 64, 128 etc. then get 2 images and set them to different composite/blend modes or transparency, then scroll them past each other with a linear keyframe. then for some extra fun, export that video then re-import it and double it and gently do a hair or 2 more things on it. then if you still have time to spare, do it again