So this was a mix of luck and good fortune that the floating shelves I wanted (from IKEA) fit PERFECTLY into that space and cost $15 a piece. And now I have two magical shelves to put cleaning supplies, toilet paper, hand towels, and hidden lady products.
I think I'm most excited about the bins. The gray metal bins are from Target and they were $1.50 each. You read that right. That dollar section in the front of the store is always a must when I pass through. The black cloth bins are from Bed Bath & Beyond and were $6 a piece. I've had the glass jars forever. The black & white metal containers are from IKEA and I'm pretty sure they came in a set of 3 for $7 or less - tampons fit perfectly into the medium size.