Hey everyone. I see a lot of new researchers stressing out over how to keep track of their vial logs and reconstitution dates. When you have multiple compounds in the freezer it gets messy fast. I wanted to share a dead simple method I use that keeps my lab notebook clean and stress free. All you need is a basic spreadsheet with columns for the compound name, the vendor batch number, date received, and storage location. When you reconstitute a vial just add a column for that specific date and note the volume of bacteriostatic water added. It takes two minutes per vial and saves you from guessing later. Take it slow and get into the habit early. Future you will be super grateful when you are reviewing your notes and everything is right where it should be. Let me know if you want a template screenshot or have questions about how I set mine up.