Today was camera cleaning day. Had to get some dust off the sensor and the good news was that all I had to do was blow, no wiping or contact with the sensor was needed.
If you ever need to blow dust out of your camera, never used a can of compressed air. Instead, use something like the Giotto Rocket Blower. Much gentler and safer. The canned air gets cold and will damage the sensor and/or the low-pass filter.