Writing with a co-author is like cooking in someone else's kitchen: you bring your recipe, they know where everything is, and the dish is better when you respect their habits. Your partner knows what biologists expect in a validation section, which claims will embarrass them in front of peers, and which journals their community reads. You know how to make every number reproducible. This week you use the same writing…
If you only do one thing this week: draft sent to the co-author
Target journal author guidelines chosen with the partner
Saturday sandbox
Target journal author guidelines chosen with the partner (e.g., a protein engineering or applied microbiology journal; verify fit and open-access policy)