It Depends
While the short answer is "it depends," there is a "usually" configuration. [post=4824918]Earlier discussion here[/post].
I wear a Leatherman Wave at 4 o'clock on belt. Pretty much always. It's handy, easy to reach, easy to stow.
I wear a full-sized folder at about 9 o'clock, depending on where the belt loops are. It's an adapted horizontally mounted nylon pouch with a Velcro flap that opens either to the front or back (usually front). Handy position, easily reached. The cell phone rides on the right, so this knife rides on the left. In this pouch, depending on the day of the week or upon whatever activities are expected, you will find one of these: Case Sod Buster (lg), EKA/Normark Swede 92, Buck 110, EKA Nordic T8, Buck Vantage, NRA Outdoor 12700 Steigerwalt, Buck 110 EcoLite, Kershaw Northside. The Vantage is the smallest of the "full sized" folders and the Northside is at the high end. My favorite in this position is the EKA Swede 92.
The Leatherman and EKA Swede 92 look like this:
Various pockets . . .
I pretty much always wear cargo pants any more. In the right-hand thigh pocket, I keep a leather glove pouch with at least an EKA/Wenger SAK, and sometimes a Stockman or similar folder. The glove also carries the flashlight, eye drops, and tweezers (not shown), and a flash thumb drive.
Like this:
Contents:
Right front, Fisher Space Pen (collapsible) and folder
du jour. In the photo, it was a Case Peanut. Today, it's a Buck 301 Stockman (yellow).
Left front, keys to various things. Car, house, mailbox, that kind of thing.
Left thigh, wallet. I used to carry the wallet in a hip pocket, until my chiropractor started giving me a hard time about sitting on it. Now it rides outrigger, where it can't add stresses to the spine.
Shirt pocket, various cards, a flat (Fresnel) magnifier, and a Fisher Space pen, or other pen that takes the Fisher refill. Today it's the
County Comm Embassy Pen (black). Mine's aluminum; they now
also make stainless and a
solid copper version.
The basic make-up and layout have not changed in more than three years. I've tried a few different layouts, and this is the one I've adopted, because I can reach for whatever I need without having to give it much thought. I live and work in a geek's world, so my applications tend to be lighter work, food, and packaging. My Leatherman gets used to trim nails as much as anything else.
The knives change from time to time. Also, because some of my cargo pants have an extra pocket either inside or outside the main thigh pocket, there will often be another knife there (today it's a Kershaw Packrat on the left; yesterday it was a Buck Revel).
If you want to calculate the combinations, there are three knives that rotate.
Full-sized folder: seven or eight possibilities;
Right front folder: at least ten possibilities;
Extra pocket Folder: at least six possibilities.
I'm sure someone could construct a grid representing all the possible combinations. I would simply mess that up by adding a new knife or two.
Oh, there's a Case Sod Buster Jr (yellow, CV) that rides in my jacket pocket, regardless of whether I'm using the jacket. Since it's winter, you can add that knife to the list.