I often shoot photographs in colour and then make them black and white when I get them onto the computer. It’s cheaper to do that with film, as both film and processing is a lot cheaper if you stick to colour. Today I tried shooting on my digital camera in black and white mode, with a virtual red filter on it. This is easier than trying to guess what effect the filter will have later in processing. The red filter is great for definition in clouds, which is handy as English clouds are often just different shades of grey. (I also have the option to use a green or yellow filter).
I have a few filters for my film cameras, including orange and red, I really should try shooting with them. I could even shoot in colour then convert to B&W later the filter will still have the same effect.