Professionally, I photograph corporate events, business portraits, and products. For fun I photograph anything. Although my gear varies, I have a basic camera kit that I nearly always carry.
My main camera is a Nikon D800 DSLR. Its 36 megapixel sensor supplies high definition photographs with great dynamic range and low light capabilities. It is excellent for landscapes and almost too good for portraits.
The second camera I carry and use regularly is an iPhone 5. It needs good light to avoid noise in the image, but its convenience makes up for any shortcomings. It renders good pictures even with default settings.
I mainly carry a standard zoom Nikon 28-70 f/2.8 and a Nikon 70-200 f/2.8. They are fantastic lenses and I use these for most of my work. I use a Nikon 50 mm f/1.4 prime when I am doing street photography at night.
A polarizer is useful for capturing deep colors and a neutral density filter allows me to set slow shutter speeds on bright days.
I always carry a white balance calibration target that is also useful for checking exposures.
Yes, I still carry a light meter and will use if for portrait shoots.