If you don’t put water in your empty shampoo bottle and shake it to create another week’s worth of watery shampoo, you aren’t stacking hard enough 

 Shampoo? 

 I dilute my cologne with rain water and call it “Eau de Lawn Sprinkler”. 

Ladies dig it. 

 Maybe it’s just the French name and you could do just as well with just the rainwater.  Worth an AB test 

 I will post results after sufficient testing. Thanks for the idea. 

 Only water + no shampoo = more #Bitcoin