It's been constantly noisy the past few daysIt's very audible unless I shut down the laptop of courseI use a Dell XPS which was brand new a little less than 2 years agoObviously I'm out of warranty so what are my best options to take care of the fan myself?
T-cut will clean most things, try it
simichrome cleaner, toothpaste and an old toothbrush works in a pinch, as does a paste made from bathroom cleansersimichrome is the best for brass and Nickel (which is mostly brass)
If it's not real brass, but instead brass-plated or brass-coloured steel, you'll have little luckIn general steel is far cheaper than brass.