Geeze, I couldn't for the life of me come up with a good title for this post.
Just wanted to share the brain wave I came up with.
DS has sensitive skin. When I change his nappy I put a layer of olive oil (and sometimes GSE) on his bottom to keep off the moisture. I used to put a couple tablespoons in a plastic yoghurt cup and then recycle cup and get a new one when the cup was empty. He recently got yeasty and it occured to me that I was likely causing it. I think dipping my fingers back into the cup was causing it to harbour bacteria.
So today I picked up a pretty little blue glass dropper bottle. I filled it with the olive oil and a few drops of GSE. Voila! No cross contamination problems anymore. I picked up a second bottle while I was at it so I'll have one for DD when she's born.