It may be a drought out there, but it should never be dry down there. Umbra’s here to make sure things go smoothly with advice on safe lube and a recipe for making your own out of flax-seed oil. (Bonus tip for There’s Something About Mary fans: The concoction can also be used for hair gel.)

This year marks the 10th anniversary of our Ask Umbra advice column, and to celebrate, we’re pulling a favorite gem of eco-advice out of the archives each week.