I've been buying both Crystal Light raspberry lemonade & citrus for years & have obviously enjoyed it. However, lately I've been very disappointed that although the ends are marked to tear the tubes open, they are not perforated. This may seem insignificant but it is really annoying to always have to stop & find a scissors before the drink can be made. I'm hopeful that something can be done in quality control to improve this situation. Sincerely, Susan