Are you already for that inevitable question from your family when you arrive home for Christmas vacataion? Or perhaps your family doesn't say patronizingly, "Well, what did you learn at college this quarter?" But if they do, you can be all ready for them this time with something of practical value. When you pack your bag to go home, pack along these suggestions for table decorations. And then ask mother if you can have complete charge of the Christmas table, for there are so many original and smart ways of decorating the table this year.