Ukrainians are widely expected to give a resounding endorsement to the overthrow of their last elected leader by voting for presidential candidates promising close ties with the West, in defiance of Russia's Vladimir Putin.
But the absence of more than 15 percent of the electorate, in Russian-annexed Crimea and two eastern regions where fighting with pro-Moscow rebels continued on Saturday, may mar any result.
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More than 1,800 litter pickers will clear an estimated 57 tonnes of reusable items and half a million sacks of rubbish.
Time for Project Let's-Make-the-Best-of-it.