pumping at work

So the dreaded day is unfortunately approaching when I will be returning to work.. I'm lucky enough to have been able to stay with my LO till now... but I'm having anxiety about going back! I was wondering if anyone could give me advice about pumping at work... what should I take with me besides my pump and accessories.. and I have already bought a cooler to store my milk. Is there anything else that would be helpful to take to make the whole process easier?