If you use them for your use only, or want them "cleanly" organized, consider prefixing it with something personal to you (or a generic one such as my_). For example, I'd prefix them with l_: my_rename_photos.sh, my_lightson.sh, etc.
If there's a lot of them, write a wrapper script which would call the individual scripts from a common location (/usr/share/my-scripts/). Then, you can only make sure your wrapper script is aliased/moved in the PATH. Example: my rename, my lightson, etc.