One of the biggest challenges I have with analog photography is recording basic metadata to accompany my shots. Sooner or later, my film gets digitized and those scans live in my photo management app along with the native digital photos. I have several techniques to help me with this process. Today, I'm going to cover data backs.
Both my Contax G1 and 139Q cameras have data backs that I can easily turn on and off. I think ease of control is a big factor here. Because I certainly don't want timestamps in the lower right corner of all my images.
What I do is record a setup shot at the beginning of a series with the data back enabled. The idea image would be one that contained additional information, such as a sign or placard (more metadata!). I capture the setup image that has a timestamp, then I turn off the data back and shoot my normal series of shots.
When I get the film back from the lab, I know the date and time I recorded each series, plus any other metadata in the shot. This is a tremendous help when cataloging the scans in my photo management app. And it's also pretty darn cool when reviewing the film sleeves years up the road.