Eric, what is negotiable varies by company. Sometimes there is room to talk on salary. Insurance and 401k rarely. Time off, it depends - getting extra paid days is hard, getting an ok to take more time unpaid is often easy (and you just work the salary to make it so you end up at the same place). Training is a good ask. Flex schedule. Comp time. Getting a company phone and getting to pick the phone. Picking your laptop. Being a local admin (tell me that isn't worth something!). Big monitors, special keyboard are smaller asks, but why not ask? Always good to ask about a bonus program, tuition assistance. Ask for exam reimbursement. Paid time to go to training (even if they won't pay). It would be rare to not get something, because they want you - that's the time of most leverage for you.