I have a really silly problem. The flip cap on my current shampoo bottle is too hard to open. This is especially hard while I have wet hands and soft fingernails. Someone should have thought of the design and where the product will be used before making it so difficult. I get incredibly frustrated until I can somehow jam my fingernail under and hurt my finger, only to pop it open and let its sudsy goodness wash my dirty hair. I feel silly almost needing to call my strong husband in for help. Maybe it is child/Erin proof!