I bought some room spray base from a supplier that is just alcohol and distilled water. It gets raves on that supplier's board and I liked it too, but shipping kills me. Can I just take regular isopropyl alocohol (from walmart) and mix it will distilled water and have the same results? I know there are two different kind of alcohol...which one would work better? I was thinking a ratio of 70/30 (the 70 being the water)...does that sound right? Thanks for any input....