Let's keep it simple and straightforward, share 1 tip that can help others in your dev team become more efficient!
I'll start with a classic trick to get cleaner code: The Boy Scout Rule. Leave your code better than you found it. Boy Scouts have a rule regarding camping, that they should leave the campground cleaner than they found it. The same applies for maintaining your codebase in the longterm.
Let me hear your best tip!