Versatile Clothing

What’s the most versatile garment in your wardrobe?
Styles of Sari
Probably the most versatile garment in my wardrobe is my laplap (aka lavalava, sarong, etc): two metres of fabric with the ends hemmed. In its time it has been a skirt, a shawl and a wall hanging, and there are plenty more uses I could put it to if I so desired.

What do you think?