I bought this for a project: pill identification.  I take multiple medications, and 9 of them are small, round, white ones.  I put them in those containers designed for a weekly dispensing.  Well, I wouldn't know which pill was which, so I thought of these sprays, where I can color each with it's own identifying color would be a big help--and you know, I was right.  Now, each pill gets it's own color, and I can easily identify if any are missing in the daily 'cup'.