Here in the UK you could just do it from the rain that runs down the windscreen. Maybe in the US you could run is from condensation from the AC? Or I'd imagine

Here in the UK you could just do it from the rain that runs down the windscreen. Maybe in the US you could run is from condensation from the AC? Or I'd imagine filling it wouldn't be too hard or take too long. In the winter here I probably fill my windscreen washer weekly or fortnightly, and it takes 30 seconds at most (pop bonnet, open the cap (drivers side near the top) pour in 2lt of fluid, close cap, close bonnet - not dirty or difficult to do).