How to clean a digital camera sensor:
🙂 Buy swabs and fluid.
😊 Use swabs and fluid until only a tiny little one-pixel speck is left.
😎 Use swab and fluid for perfection.
😱 Realize that the tiny speck now is a sensor-wide black smear, well visible without even zooming in.
😭 Curse yourself for having destroyed a $2000 camera.
😰 Swab and fluid. Swab and fluid. Swab and fluid. Swab and fluid.
😣 Buy more swabs.
😣 See step 6.
😣 Use swabs and fluid until only a tiny little one-pixel speck is left.
😊 Declare victory.