
Hm... I've never had to really think about the steps I take to get the result I'm looking for. I generally just feel my way, sliding this and that and adding one thing and subtracting another. So much depends on what program I'm using. For this photo below, I used Paint Shop Pro.
The very first thing I do with any image is to create a duplicate. In PSP, this would be Shift+D. I then close down my original photo. My next step is to duplicate the layer, so that I work on the second layer. It is so much quicker to delete the layer if you want to start over than going back so many steps in your history. Once I have done this, I can start playing. These two steps are so automatic for me that I don't count them.
So many colour photos turn out terribly in b/w, as what appears high contrast in colour is really bland in b/w. I mostly look for light/dark contrast when deciding what photo to convert.
With this photo, I first went to my Chanel Mixer by going to New layer in my layers palette and selecting adjustment layer or by going to Layers in the menu, then adjustment layer and Chanel mixer. PSP, like Photoshop, has a checkbox at the bottom for 'monochrome'. I took the easy way out and checked that. I then played with the sliders, raising the red a smidgeon and the green, dropping blue and so on until I go the effect I wanted. I don't usually move those around a great deal. What I like to do then is see how much 'drama' I can get. Back to Layers > adjustment layer > Levels. I drag the black 'diamond' on the top slider to the right fiddling around till I'm happy, then do the same to the white one, dragging it to the left. I may move the middle 'diamond', but I seldom do. For this particular photo, I increased the contrast by adding yet another adjustment layer and bumping up contrast by about 10. I like adding adjustment layers, as they're easy to delete if I don't like the effect or I can change their opacity or blend modes.

Monochrome Monday is
Gary's new project. Do stop by to view his work and see other entries.