Good idea and thanks for sharing!

I'd like to add another tip for saving reagents from a K-2006 to make them last longer. For normal every day testing of chlorine and pH, use a cheap OTO/Phenol red kit (yellow and red drops) and just use the K-2006 every week or so. Of course, if you are fighting algae or have a high CYA pool and need to run high chlorine levels, you need to use the DPD powder since an OTO kit won't register high enough.