I know I have 3 and maybe more. Sometines I can't find one and pick-up a new one at Walmart and then later I find the missing ones.

I don't know how many I have or where... I usually end up using a rotary cutter, so I don't worry about it.

not a clue

I have 3 one by the sewing machine, one by the iron and one some place that is hiding from me ha ha

I have 2

I have three that are opened, and 3 more unopened. When I need a seam ripper; I need to get at one and it needs to be sharp.

Sounds like there is a thief in your sewing room and it very well could be your sewing machine doing it. I have always wondered why my little ripper disappears often and usually it is just under the right side bottm edge of the machine. Now I know, it is the machine calling it in there and trying to take it away from me. You gotta watch these machines.

I have at least a dozen but they do get dull. Just last week I broke my favorite, a small one by Fiskars. I was taking a button off the card for grandson's shirt-of course I know better-Hate those staples.
Got a new one yesterday

I know I have at least 3 or 4. I buy another when I can't find one. I normally have one in my little sewing basket I keep in the living room for hand stitching. And one normally stays in the basket beside my sewing machine. But the others I only find when I'm looking for something else. lol

I have five - three where I can find them and two MIA.