Negotiating an offer, is it too late? - what worked for you?

It is the first offer in 10 months and I do not want to mess it up. I worked as a security officer before this. The benefits are decent. Did you negotiate?

Most employers expect a short conversation. Mine did not even blink.

Thanks for writing this out. I went through something close to it 10 months ago, and it settled down once I kept a simple log of every call and form.