Those little bottles of shampoo and soap don't last long so guests would have to go out and get these items anyways (most of our guest stays are 7+ days).One other thing is that many guests will leave shampoo and soap behind, so there's usually plenty of those items along with sunscreen, lotions, etc... in our bathrooms.  

Words of advice - always wear sunscreen, and protect your eyes at all costs!

@Ralph White bring your sunscreen!

Pack your sunscreen.