[header] How to avoid office pitfalls [title] Do weigh up whether you want to leave or resign. [step] Resigning is an important decision. It will affect your career, your resume and your financial stability. 
If you want to leave because you feel unappreciated or the office politics is too much to deal with, speak to a senior person allowing them the opportunity to deal with the issue before you actually resign. Management needs to be made aware of how your morale is being affected before they lose you.