Black and white has long been the default "artistic" style for photographs, so it can be easy to forget how compelling a color photograph can be. Here's an in-depth guide to help you get amazing color in your photos.
I almost always have a (circular) polarizing filter on my lens when shooting landscapes. It reduces a lot of glare, can increase or reduce reflections and gives the blues (sky) and greens (vegetation) a truer color in my opinion.
When I shoot in black & white mode I will use a red filter.
