'TIL TUESDAY a poem by Sharon Warden Carefully, with the precision of an old hand at this, he metes out a level cup of birdseed to the feeder, his daily portion for the flyers that wait silently on the wires in his yard; throws a handful of peanuts down the driveway for the squirrels, fat as pigs from the daily supplement he provides them.    Let's see -- enough handfuls of nuts to last 'til Tuesday; enough birdseed, too.  Back inside,  he scrutinizes the contents of the refrigerator; checks in the drawers, on the shelves.  Yes, there's enough   'til Tuesday -- eggs all in one basket now, milk for his coffee, bread to make toast, hot dogs, ground meat, two apples, a little lettuce, plenty of mayo, enough 'til Tuesday.  Satisfied, he grabs his cup of coffee and sits down  to wrestle with the morning news.  The smoke from his pipe heads off for the ceiling.  Plenty of tobacco in the canister 'til Tuesday.  Sharon Warden