Congratulations
@paranoid marvin
I didn't enter last month, I hit too many dead-ends
My first idea was something long the lines of the garbage island in the Pacific being sent into space with loads of other garbage, only for it to form an asteroid to crash back down to the Earth - then I remembered that was an episode of
Futurama.
Then I thought about a series of classified ads: one offering waste collection, another offering funeral services and another offering a fantastic new food stuff - the twist being all ads were from the same company - then I thought: where's the science-fiction, and anyway it's too similar to Soylent Green.
Then I thought about an intergenerational spaceship and a recently deceased grandmother's favourite saying being 'waste not, want not' with the ending being something like 'Hey kids, remember how tender Grandma was? Would you like another slice?" - but then I thought: this is a family-friendly forum, so maybe cannibalism is not quite appropriate.
Finally I thought about a mad scientist going around collecting everything that's either a waste of space or a waste of time because he wanted to make his own spacetime continuum - but I only had a couple of days left and couldn't make it work.
I hope you don't think reading this was a waste of your time