I don't know what you're keeping in the bottle, but if it's non-medicinal, consider your local discount pharmacy as a source. Things like eyedrops come in small dropper bottles with screw-on lids that will hold up to a lot of use. Typically 0.5 - 1.0 ounce capacity. Just pour the junk out, suck in water to rinse, and then fill with whatever you please. My 2c.