Using napkins, pre-cut paper towels, Pampers, etc. with letters, pictures, numbers on them.
grapes and olives that were crushed before shabbos; whole grapes in wine or grape juicel;
How to Deal With an (Electric) Plug on Shabbos;
Putting Items Back Into the Refrigerator or Freezer, or a Freezer in a Different Room or in the Basement. Pouring Soup Friday Night From...