I can't remember ever being bored nor do I remember any of my childhood friends complaining of this. There was rarely nothing to do (we played with anything and everything). We always played outside (roller skating, skipping, hide and seek, ice skating, igloo building, hopscotch, playing house, playing doctor, playing tag, playing hockey, following the delivery men, knocking down icicles, building ice dams in the spring, collecting tad poles, climbing trees, playing baseball) and were kept in only when it was dangerously cold - like 20 below zero or lower.
My parents cooked up a plan for our amusement should we get cabin fever during the cold snaps and annoy them with boisterousness or overdoing our musical instruments (the house was small and there was no escape). They decided we could make our own wall paper for the "rec" room downstairs in the basement; really just a corner of the basement partitioned off where we kept our television set. My father would bring home all his mail and we kids would steam off the stamps, and get them flat and dry. He had a motive, of course that the process would arouse curiosity about where the stamps came from. Little did he know that he was planting the seeds for my lifelong wanderlust. Dad never passed up the opportunity for a "teaching moment" and today, Father's day, I honor his memory and thank him for being such a loving and engaged parent.
When those rare nothing-to-do moments came along, we glued the flattened stamps to rolls of cash register paper. Neat and straight (as a kid could manage) and with the colors varied. I remember sitting at the dining room table with Eilleen, thick snowfall whiting out the windows, the heater blasting us with warm air and the smell of mucilage hanging in the air. The "stamped" strips were applied to the walls as we completed them. When they were finally all done, mother lacquered the wall. The stamp wallpaper was a conversation piece; a piece of entertainment in itself - guests would always take an interest.