â How long does nicotine stay in your system (hair tests) This is a reliable method to measure long-term nicotine use, but is an expensive method of testing. This method is extremely accurate for a period of up to 3 months after stop smoking, and can detect nicotine use for up to 1 year after quitting. â How long does nicotine stay in your system (system clean) Most people believe that nicotine is out of your system in just 3 days, but that is not correct.
1 White ceilings also keep the focus on the color of the walls while making the walls appear brighter.  Should you decide to opt for a true color on your ceiling, do not use the same color on your walls.
Try a paint color in the room to make sure you like it and that it works with the space. Live with it at various times of the day as a painted wall will appear different in the morning, afternoon and at night. If you don't like it, paint over it. Color is a great punctuation and doesn't have to be overbearing.