If you’re working in a laboratory, be it at a research institute, university, hospital, or a biobank it is possible that you have a large number of legacy samples sitting in your freezers, and you may have no idea what these tubes even contain. We would suggest that legacy samples should be relabelled at least once in their lifetime and often re-labelling becomes inescapable as samples may need to be updated in accordance with that new record keeping systems that you just had installed. Luckily, modern labels incorporate technology to help circumvent the flaws seen in old paper labels.