UPDATE
I know I just wrote about my workhorse lens last week, but unfortunately, that all changed when my Canon 17-40mm f/4 L USM lens took a submarine dip in Zion National Park with my Canon 7D Mark II. Additionally, I sold my Canon 24-70mm f/2.8 L USM lens because I wasn't really using it. The focal length was always a little boring and uninteresting to me. So, with an insurance check coming and the money I made off my 24-70 I have a few new items on the way.
NEW PURCHASES
The first new purchase I made was the Canon 16-35mm f/2.8 L USM. This seemed a fitting replacement and upgrade for the lens I lost. The wider aperture will be excellent for low-light situations and the quality of the glass is exceptional. I was very back-and-forth between this lens and the f/4 version with image stabilization, but I ultimately went with the lighter, faster version. The only thing I need to figure out is the lens hood. My 17-40 sported a longer lens hood because I only shoot cropped sensor cameras, but I have yet to find a sensible solution for the 16-35.
The next lens I added is the Canon 14mm f/2.8 L USM. I added this lens to my lust list when they came out with the version 2 and upgraded the optics and focusing problems of the first generation lens. Shooting a lot of adventure sports and travel I find myself wanting to go wide or get in close with a telephoto, so this new setup should be a great fit for me. The final lens I'll add (probably in the next month or so) is the Canon 24-105 f/4 L IS USM. This will make a great all-around lens for when I'm paring the kit down to just one lens.