Anyway, I propose that we start a "tip of the day". I volunteer to go first. (Please disregard any misspelled words.)
Using C. &. G. for Intellicad, you have unlimited "undo's" available to you. However, these do come with a price. As you work your system resourses are depleated by the amount of info neccessary for each undo. If you work for an extended period of time without saving your work, the program can run out of resourses. Bottom line, SAVE YOUR Work Frequently.
Larry

One more thing, a spell checker option here would be really nice for those of us who are word challenged