Here's a bit of Friday silliness for you. Below is a "supercut" of a bunch of Kramer's entrances on Seinfeld. The video claims to include all his entrances from the series, but I'm not sure if that's possible in only six minutes. Anyway, by about the two-minute mark in this video, my brain started to shut down and I entered a sort of altered state in which all that existed for me was Cosmo Kramer and that door in Jerry's apartment. Watch and be mesmerized.
See also: No Signal: When Movies Use Cell Phone Signal Loss to Heighten Drama, which includes links to other supercuts like this.