OK, folks, one thing I really don't know how to do is snagging a screen shot, either on my Prime or my Vivid. I appreciate all help in bringing me up to speed on these techniques. Thank you, very much.
If your Prime is on ICS, you can also hold power and volume down at the same time. That was a new one that Google threw into ICS, so it should work on all ICS devices -- though I'm not sure if OEM skins like Sense override it.