I have a weird count for my Ar and 1911 pistols. 11 mags each. 1 in the gun and 10 loaded spares. For my M1 garand that gets a little fun because yes I have loaded clips and lots of them. I have somewhere north of 150 loaded clips for the garand. Most of my other firearms are even more vintage and not worth keeping either loaded mags or high quantities of them, either 1 or 2 mags per gun depending on cost.
BTW, here is what 1008 rounds of .30-06 looks like when loaded into 126, 8round garand clips.