For the sort of diving we are doing, it's unlikely that we'll be carrying more than three stages, normally two. Two stages can be clipped between hip and chest d-rings. I like to have the O2 on top of the 50%, some prefer to have the 50% on top of the O2. The third stage can be nose clipped to the left d-ring. I've done this before on double stage cave dives. You don't carry the third stage very far as that would be the O2 which would be dropped at 6m anyway.
We have some three deco gas dives planned for later in the year. For those I would carry the 36m and 21m bottles between hip and chest d-rings and just nose clip the 6m bottle (the O2). Neutrally buoyant cylinders are a god-send in these situations.
If you are lugging stages around you can use one of these
stage loop I've seen people carrying about a dozen stages with one of those!
The left d-ring can get a bit "busy" though.
Bob