Opening and closing cereal boxes, cookie packages, books, etc. with letters, numbers, pictures printed on them.
Various different examples which fall under this melacha;
Understanding the Concept of גרמא. What Should One Do If a Candle Fell on the Tablecloth and Caught Fire?;
More Information About Playing Kugaluch on Shabbos. Fruit That Spilled Out of a Basket in the House;