Hi,
August: you are right no alcohol for your obturator. Here is a solution that is quite effective for freshness and cleansing. Get a one litre container fill 3/4 full with water (tap water will do but if you want to feel upper crust you can use evian.),add 1/2 teaspoon of table salt (bacteria gone), add 1 tablespoon of baking soda (lubrication and refreshes), 1 tablespoon of lemon juice (freshness). Keep in fridge until you need it and you have a hardy supply on hand.

Joanna you are correct and age old very effective remedy but not too much salt you only need 1/2 teaspoon in 1 litre of water which equals a 0.9% solution and that is all that is needed. People with high blood pressure etc. should limit salt intake and the direct absorption to the blood stream is a reason to stick to the above recipe.

Cheers
Mike