When you work in a cell culture laboratory, protein chemistry laboratory, or molecular biology lab often you are required to do large assays. I have worked in few companies in the lab and I know what it is like to deal with dozens of sample tubes. Very confusing and often difficult to keep track of , which leads to costly mistakes. Hours of time spent on preparing samples, collecting samples all that can go to waste if you make a mistake mis identifying the sample, or adding the wrong reagents. It is very frustrating, specially painful when your manager is waiting for the data to present at a management meeting. Sound familiar?. You are not alone.