Good Questions: Rain Barrel Alternative?

(Image credit: Apartment Therapy)
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This question comes from Kim:

Are there ways to collect rainwater without a barrel hooked up to a downspout? I live in an apartment. I was thinking something along the lines of a covered bucket with a funnel.

One alternative to rain barrels that we’ve recently come across is the Rainwater Downspout Redistributor. But, we get the feeling you’re looking for a solution that doesn’t involve a downspout at all?

In that case, if you’re simply using the water for gardening and the like, you could use a bucket. However, depending on the amount of rainfall you get, you probably won’t collect too much that way. The whole beauty of a downspout is that it collects rain from the huge surface area that is your roof …

Does anyone have any ideas for collecting rainwater without a roof involved?