Reddit mentions of Sensor Swabs Type 2 (Box of 12)

Disclaimer: proceed at your own risk.

Thom Hogan has a decent starting point reference http://www.bythom.com/cleaning.htm

My general process:

• Charge batteries before proceeding my D7000 won't let you lock up the mirror unless it's almost fully charged.
  
  
• Take a photo to see where the dust is
  
  I normally take a photo at my lowest ISO, of a white surface and at a high aperture, focused at infinity. It's fine to have plenty of blur as the dust you're looking for is stationary.
  
  Import to Photoshop, auto level normally makes the dust really pop out.
  
  
• Be grossed out at how much dust there is.
  
  
• Use mirror lock up cleaning mode and clean using a rocket blower
  
  I do a few passes with the rocket to see what I can get off.
  
  
• Take a new reference image, if still dirty give the DSLR brush a try.(http://www.amazon.com/D-SLR-Sensor-Cleaning-Brush-Sensors/dp/B000LQQQZQ)
  
  I keep it in it's tube, lock up the mirror, use the rocket blower on the brush end and give it two swipes.
  
  Repeat.
  
  
• Take another reference image
  
  
• If still not good enough I break out the sensor swabs and eclipse (http://www.amazon.com/Sensor-Swabs-Type-Box-12/dp/B000F6VRJC/ref=pd_sim_misc_6)
  
  One pass in each direction
  
  Repeat until done.
  
  I haven't had to proceed beyond this.
  
  You can definitely fancier than this with a clean bench and a nice high mag illuminated magnifying glass but alas got to work with what you got. I normally do this like maybe every other month depending on how often I'm shooting or when I start to notice the dust in my pictures. It works pretty well and I haven't had any problems. Knock on wood.
  
  
  
  

In my experience you don't really need to detach the screen to clean it. It is sufficient to use the same equipment used to clean camera lenses and sensors, such as pressurized air (as you noted), a sensor cleaning brush, a wet cleaning kit for really stubborn dirt, or the microfiber cloth that comes with the kit. It is a bit annoying but I don't think it's realistic to make it detachable.

Here you go, dude, these are the correct size for your Nikon D70. Just make sure you get the fluid, too. It only takes one drop of cleaning solution on the sensor swab.

http://www.amazon.com/Sensor-Swabs-Type-Box-12/dp/B000F6VRJC

I've used Sensor Swabs before. If you buy that, be sure to get the right size. I've used it on an NEX-5 (dust) and D7000 (oil?).

Before you start rubbing stuff all over your, do your best to blow it off or use the camera's cleaning function. You may end up with a scratch on your sensor's low pass filter if the speck is actually dirt, not dust.