If so, great choice in majors by your son.
I can't imagine better news for an ND parent. You will never forget this day, nor will your son. I recently was going through old family records and my Mom (God rest her soul) had saved my acceptance letter. I promptly scanned it so that it could be backed up electronically and kept forever. Might be a good thing to do.
put the money towards tuition! Kidding... sort of.
Congratulations to your son and to you.