Bemoaning the fact that you can't afford a rainwater tank? That your rainwater can't be captured because of the downpipe, or lack thereof?
Here a two simple ideas to assist you:
Pic 1 - dig a hole in the ground, and line it with builders plastic (gunplas) or a plastic tablecloth you already own. Make sure that you are able to securely cover the hole / water in order to keep animals / children safe)
Pic 2 - create a water funnel - again using builders plastic (gunplas) or plastic tablecloth attached to and slung over a wire between poles (i.e. washing line and posts?) to direct rain water into a bucket which can then be decanted into rain water storage bottles. It will require two shorter posts being installed / devised for the lower end.