Generally, the more opaque, the more likely it is to be for hair, but that does not always work.

Soap. Use a good old fashioned bar of soap.

I still say 'creme rinse' for conditioner, which I am told makes me decrepit.

I often get into the shower and find myself utterly incapable of being able to tell the shampoo from the shower gel from the conditioner.

It's worse when you mistake tubes on the countertop when attempting to brush one's teeth.

Neosporin completely fails to be "minty fresh"

Phoenix59: I am not convinced there *is* much difference. At least with shower gel and shampoo. Except possibly the smell.

Preparation H on the toothbrush is not advisable.

Or Canestan.