Cutting my last tie with Windows on a Lenovo T420 laptop

My Lenovo T420 came to me with Win7 as a refurbished laptop from
Microcenter at a modest price. I promptly tried out Trisquel with a
thumbdrive, found it nearly fully compatible, got the necessary USB WiFi
from Think Penguin, and collected all the necessary ancillary S/W with
apt-get. Installation of Trisquel into all but a sliver of space into
which the original Win7 is now squeezed went essentially flawlessly.
Everything I need for running several websites and the last vestiges of a
consulting business is now done with Trisquel 7 ... except for my
various digital cameras. Until today.

After reading the thread on the caveat against installing the gratis
Win10 as pointed out by FSF, I decided to see what is involved in
extracting pictures from my Sony DSC-H20 camera; I got it right on the
first try.

Here's the procedure:

1. Plug in the USB cable between camera and computer;
2. Turn on the camera to get the "Memory Stick" screen on the camera's
display;
3. Go to Places, where you should see a new XXGB Volume, i.e., the flash
memory inside the camera;
4. Find your pictures, and cut & paste them into the computer as
desired;
5. Go back to the desktop, find the XXGB Volume, right click and select
"eject" and
6. Turn off the camera and finally unplug the USB cable.

Voila! No further need for windows, as the camera has a USB mode that
does not demand any MS product.

Just thought I'd post this as a success story free of hassles and
complaints.