I prefer the liquid sunscreen because it is easier for me to apply to my bald head...but the smallest spray bottle I can find is a 1 ounce.
Soooooo.....after much thought, I came across the idea of using the perfume spray containers giving to me as samples when I buy "eau de toilette".
Alot of the samples that they hand out are glass, but they do offer plastic one of which I used and the top comes off easy for refilling. You can get about 20-25 sprays out of it, good enough for a over nighter or a 3 dayer I would think.
I soaked the container in baking soda and water overnight to help dissapate some of the cologne smell which seemend to work. It hardly weighs 1/2 ounce when full.