A bunch, but I always have a bunch. I bought a carton of a dozen of those huge rolls used in commercical settings because I found them for such a cheap price. They are just going into the attic. There is not much I can store up in that hot attic, but paper and books I can.
I estimate there are between 25 and 35 rolls throughout the entire house. That figure is only slightly higher than pre-COVID days, now that the panic at the stores has leveled off somewhat. (LOL, that’s the only curve that has flattened so far.) We have 2 1/2 bathrooms and there are just the two of us living here, so the amount is sufficient.