Forget buses, this is the way to do it. The price is similar, but they don't take as long and you get thrown together with other people who become new friends for a few hours.
We left all sorts. Medication, toiletries, jewellery, make up, clothes, shoes, accessories, batteries. If you're out for the day with a guide, buy them something to eat or drink. We're not rich in British terms, but in Cuban terms we are, so we need to help if we can, and in a sensitive way.
One more post to come. It must be time to go to the seaside, surely?!