I'm quite surprised the disposable wipes are helping with all the chemicals they have in them. Katie got a terrible rash everytime I used them. I use this recipe for my washable wipe solution
a mug of chamomile tea cooled
A few drops of lavender oil and occasionally I add a few drops of tea tree oil too
1 tbsp olive oil
I make it up in a small tupperware box and soak the wipes in it. Every other day I empty it out, wash the tub and make a fresh solution.