Opening and closing cereal boxes, cookie packages, books, etc. with letters, numbers, pictures printed on them.
(Temporary Ohel) Movable machitzas. Working with protective gates on the top of stairs. A halachic divider put up in a bedroom;
Learning הלכות הבדלה on Shabbos. Saying ותן טל ומטר on Shabbos Ninety Times;