For freelance hunting I use a 3 pocket fanny pack. The middle pocket is the largest and will hold my folding hand saw, 6 to 8 Cranford Deluxe steps (single fold steps), 3 Cranford bow holders (absolute best on the market but are expensive), and an old Game Tracker safety climbing belt (no longer made). In each of the 2 side pockets I have 7 Cranford folding steps (double fold steps). The loaded fanny is wore below my Scent Lok backpack when walking and once at the tree I take off my backpack, spin the fanny around to the front of me and unzip the 2 side pockets, put on the safety climbing belt, and start up the tree taking a step from each side as I go up. Once at the desired level I want to hunt, I zip up the side pockets and unzip the front pocket and place the Deluxe steps around the tree. If the tree is leaning I make sure to keep the steps at the top, parallel to the ground, not perpendicular to the tree as I would in a straight trunked tree. Once finished with the steps I put in the bowholders (1 will support the 2 packs while hunting) and hang my bow rope to the one with the least amount of invasive branches for pulling my bow up. I then go down, drape my backpack over one shoulder, tie my bow to the rope, and head back up to hunt.
There are a lot of companies that make these types of fanny packs and Allen and Fieldline are 2 of them.