One indirect way of soaking up sunshine is to take fish oil as it contains vitamin D, especially in liver derived oils such as cod liver oil. I use it because I used to be very susceptible to SAD, and since I take a few teaspoons a week, I hardly notice a mood change when the days shorten and am much less affected by long days of fog, or an absence of sunshine.

See for example Vitamin D and its role in preventing and treating seasonal affective disorder (SAD) for more background.