Lefties of Tildes: what are some items where the left handed version is most necessary?

Despite everyone else in the family being right handed, my son is a leftie! Very excited for this development, but as we're nearing school age at 5, I'm wondering about the things he uses daily.

Seeing him cutting with right handed scissors, I'm getting him some left handed ones. What are other common items I may not be considering that are just so much easier to use the left handed version of?