I tote 2 extra magazines.
One is a full size (14 rnds) and one is a compact (11 rnds).
The subcompact mag in the gun holds 10 plus one in the chamber.
Total 36 rounds on person.
In my go bag there's always 2 more loaded subcompact magazines and least one box of loose rounds, plus a change of clothes, first aid, maps, etc...
Always and forever...I never leave home without any of it...except perhaps to the local store, half a block away.
Tin foil hat is optional.
<Stand Tall. Speak the Truth. Never Surrender.>
EDITED : cosmetic changes