Hellobee Boards

Scissors (unless using ambidextrous ones) and a baseball mitt are the only things we have for our 3.5 year old who has a left hand preference. As kids get older the binding on notebooks can be bothersome when writting.
Following for more ideas.

I’d suggest to have her learn right handed scissors. The rest of her life it’s pretty likely that leftie scissors won’t be available.
I’m left handed but really ambidextrous. I write with the left, cut with my right, throw left, kick right. Golf right, snowboard left,
Oh and ink on hands will happen for the rest of her life. Flat notebooks (not chunky spirals) help. I prefer fluid ink (there’s a word for that but I’m sleep deprived) pen vs rollerball. Roller balls tend to make more of a mess. Learning cursive was terrible using the slant board (but they don’t even they anymore)
Oh! Buy harder lead pencils instead of soft no 2. They are harder to find but don’t smudge.

I’m a lefty, and I agree with the advice to use right-handed scissors. Unless they’ve changed a lot since I was a kid, the lefty ones don’t actually cut. The ink on hands is inevitable; we learn to wear it as a badge of honor

Yes, this is a problem. When I was a kid, my class actually wrote with ink pens, the kind you fill from an inkwell. The pens were awesome, but I did have a lot of ink stains on my hands. There was a trick to cut down on the stains - you'd put a piece of blotter paper over what you just wrote. I guess with markers, you don't even need special paper, any sheet of paper will do.