My wife is very good at many things: her job, cooking, looking good in sexy boots while shoveling snow, but her two most impressive abilities, while tangentially related, are slightly more obscure:
1) she is incredibly skilled at pouring large quantities of liquid without spilling; e.g. transferring a giant pot of homemade soup into a bunch of plastic containers . . . if I did that there would be a major broth lossage;
2) she can fill the dog bowl to the brim with water and carry it a long distance-- across the kitchen, around the breakfast bar, and past the big table-- without spilling a drop . . . every time she does this, I think she's going to spill it-- and say so-- but it never happens (and she makes fun of me when I barely fill the bowl halfway and-- despite my prudence-- still slosh water all over the floor . . . but I have an obscure ability, too . . . I can close the tops of our metal water bottles so tightly that no one else in the family can open them except me).