Though lwreg itself is focused on registering chemical structures, we find it very useful to employ lwreg together with some additional database tables to store data from experiments, including computational experiments, carried out using the registered molecules. Given the lack of flexible lightweight systems for storing experimental data, and the tremendous benefits it brings to have experimental results easily accessible and queryable together with the molecules used in the experiments, we briefly describe our approach here. We also provide tutorials (Jupyter notebooks) demonstrating how experimental data can be captured and used in the lwreg GitHub repository. Our general approach is to store experimental metadata -the information required to reproduce the experiment -and data -the results from the experiments -in separate tables. When storing different types of experiments in one database, we use one table per experiment type. We use Universally Unique Identifiers (UUIDs) as keys to identify the individual experiments and to link the experimental data to the associated metadata. This is shown schematically in Figure and illustrated with examples in the tutorial Jupyter notebooks.