Rolling your shirt sleeves. It's a small detail. But it makes a huge difference in the silhouette of your outfit. The way you roll them can keep a formal outfit formal in hotter weather. Or take it to business casual. It is a fundamentally simple a
outdoor shower, corrugated metal - Could almost get away with one of these instead of trying to fit it into the inside bathroom. For a few months in "winter" it would be a bit chilly but still--fairly practical.