Perform the pre-lab and draw complete schematics with part numbers and pin numbers organized so that when you arrive in lab you can immediately start building. Make diagrams, lists, or whatever you think will help you to mentally prepare for the lab experience. Some students find it helpful to summarize or paraphrase the lab procedure in their own lab notebook. Remember that a notebook is supposed to serve as a resource. The notes that you write for lab can serve as a script that you can follow when you arrive in lab.
Some students find it helpful to make a list of the data items needed to perform the write-up.
Once the data have been collected, the report can be immediately written. By preparing in advance, you can organize the information that you will need to perform your lab and eventually the write-up. Make sure to enter lab with a plan in mind. A small amount of extra preparation can save you a large amount of effort later. Note that with digital logic however, given a set of binary inputs, the outputs of every gate in your circuit can be predicted.