Same here. I've never broken a spoke in town... even when commuting with a heavy load. But I have broken spokes on tours... and I carry spares for just that reason.

I do keep spare spokes at home... but I throw them all into the same spoke box... and I have so many bikes here that the spokes sorta all just get mixed up.

One thing I do carry all the time is duct tape. It just comes in handy. I still use frame pumps, so I just put several wraps of duct tape around the frame pump... and then don't worry about it.