This is an...interesting thread.
I switch around from booty short type panties (like the pic posted above)
to g-strings (If I'm wearing tight pants/shorts/skirt & don't want a pantyline)
to just plain old white bikini briefs, Hanes For Her, cotton... they're sooo comfy :D
And I carry baby wipes with me most of the time, they're softer than toilet paper, clean better than toilet paper & like someone else mentioned, they're very refreshing on a hot day
