I have many, I don't know how many.
The must have..........If I had to just keep a few
8" spring action Gingher
10" Gingher Tailor's
8.5 Fiskers Dressmakers
9 Fiskers dressmakers
Assorted embroidery
non fabric scissors for cutting paper and other stuff
Pinking shears
On top of those I like to keep embroidery scissors and a full size at each sewing machine (2 sm's, cover stitch and serger) along with scissors in each of my mending baskets.
Good scissors, like any tool go a long way to making sewing easier. I LOVE my big tailors, they will cut through so many layers with ease and snip right to the end,no catching the fabric between the blades and just stretching it in place of snipping. The problem is that they are very heavy so I don't want to cut with them all the time. I love my spring action Gingers but they too are heavy, that is where the Fiskers come in, plastic grips so less weight but they have a wonderful blade.