My own personal brand of labelling obsessiveness:
- DNA shall half a light green dot on the top of it's tube if it is a maxiprep; bright orange if it is primer; and I haven't had to assign a miniprep color yet.
- Chemicals will be labelled on orange tape if sterile, and on green if they are not.
- E. coli stock will have a dark green dot on the top of its tube. M. smegmatis will have dark blue.