A couple months ago, I only had 5-10 sprays left each of Gentleman and Shine, so I poured them both into my quarter-filled bottle of Openness. Recently, when my Openness and CTTM became about 5-10 sprays left, I combined them.
I guess what I especially wanna know is… is the last handful of sprays as potent as the rest? I wanna know, so if not, I won’t waste my time tryina salvage the little left at the bottom of the bottle when I get there…
There’s really no way to tell 
Well now you no longer have cttm or Ishine but something entirely different. Mixing products that are already balanced with the correct ratio of mones and fixatives throws that ratio off. Now you cant be sure what you have really
Experimones are made for mixing. Mixes and consumer productsd are made for layering.
Tisha
I have noticed no difference in strength between the start of a bottle and the end. The last is as valuable as the first to me.
One way to save the last is to pour any remainder into your next new bottle, if you’re buying more.
Otherwise, why not mix it all into a big soup and have some fun with it? Tisha is right, only god knows what you’ll have created. You’re going to feel strange if 15 hot girls hit on you and you have the best evening of your life, and then you can never recreate the mix. A risk you take.
But don’t be afraid to adventure.