The products here can all be used on their own, they can be used that way, or mixed. Sometimes simpler is better, less is more, if that makes sense. And before mixing them, make sure you become familiar with the effects of each product and how much you need of each for the best effect. This post should help How To Find Your Sweet Spot (How to find your sweet spot...)
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For a normal date/dinner, it depends what you want to happen, what you want to accomplish. You can use Ammo as a stand-alone in this situation. If you want to work on forming or strengthening an emotional bond, you can add Instant Honesty. If you want things to get friskier later on, then bring some Turn Up The Heat with you, and spray it on when you feel she’s ready to take things to the next level.