Linen, silk, cotton: do you really know what each piece needs? The label doesn't lie. But, if we're honest, most of us look at those symbols as if they were hieroglyphics. Triangles, circles, dots, dashes — it looks more like a secret code than a washing instruction. And that's exactly why, every summer, there are linen shirts that shrink, silk dresses that lose their shine, and cotton t-shirts that end up looking like kitchen rags.
In Lisbon, the moderate heat (the thermomet...