Originally Posted by
tessagin
If any is leftover after I'm finished, say an ounce maybe 2 I may spray a couple strip scraps or just pour it down the drain then clean it out with a little dish detergent. Just put a little in the bottle and fill with water. Give it a good shake then run it through by spraying and repeat with warm clear water. You'll have a clean bottle to work with on the next project.
I almost never wash my spray bottle. One time a few years ago, I noticed a little mold in the bottle after I hadn't used it for quite a while. That time I cleaned out the bottle. But now I just put the bottle into the refrigerator if I think I won't be using it for a while. Most of the time it just sits on the shelf above my ironing board. I shake it up when I want to use it and put it back on the shelf.