I know rainwater isn't suitable for drinking unless it's been treated, and run-off can be nasty as well, but what about collecting rainwater for washing?
It's been raining heavily every day here in FL. We have hard tap water which dries out my skin and hair, and I was thinking about placing a bucket outside and collecting what I could from our daily intermittent showers. If I don't get much out of it, perhaps I could use it to "rinse off" the hard water from the shower.
Edit: It rained enough yesterday and last night to fill up a 5 gallon bucket! But I noticed that it's slightly yellowish. Since it came from my (metal) gutter run-off, is the color due to the iron? It rains hard here every day (even now at 7am, there's thunder rumbling in the distance), so I don't think there's much build-up of gunk on the roof or gutter aside from pine needles.