Work would be so much easier if we could send the emails we really want to send. You know the ones:

• “Hi, I will not be answering this email at 11:37 p.m. because I am asleep like a normal human.”

• “No, Karen, I will not ‘hop on a quick call’ at lunch. That’s my burrito time.”

• “This task is not urgent. It’s just poorly planned.”

But since we can’t (because we like having jobs), we have to find ways to set boundaries that don’t burn bridges. Here’s what I’ve learned about keeping my sanity at work—without writing resignation letters in my drafts folder every week.