Recently my kit settled down into two supporting outfits, designed to purpose.
Lowe Pro, pro tactic 350 back pack for day trips or an Inverse 100* if using a proper back pack.
Pen F set to (C1) lowest ISO, electronic shutter with delayed, touch release. C2 is set up for high res imaging. This is the ideal for longer lens work so it usually has the 40-150 f2.8 attached. This lens is as sharp as I have at f4-8 through its range and across the frame. The standard collapsable hood is used because of it's convenience when using filters etc. The resulting files are as big and robust as 5D mk2 files, with the bonus of a much gentler shutter release, longer range and lighter weight.
The 12-40 is in the bag or optionally I add;
OMD EM5n (later firmware) set to (myset1) lowest ISO and delayed anti shock which is enough smoothness for the attached 12-40 f2.8. Both lenses have excellent close focus, allowing me to skip a macro lens. This body supplies weather proofing. Myset 2 is set for sport.
ND 10 stop for the 12-40 and ND 6 stop for the long lens, a stepping ring to use them both on the 12-40 and Polarising filters for both lenses. A small TTL flash is added for macro or fill work.
Both cameras have their ideal landscape/tripod work settings set in their custom settings allowing me to set and forget, use other settings and jump back as needed.
My tripod selection these days is a shadow of my past with an incomplete Manfrotto 190/small Gitzo ball head and a light weight Velbon Sherpa, but they are plenty for these gentle little cameras. I am not totally convinced these tripods can do the job in high res mode.
Work (add to the above)
A Domke F802 satchel and Tenba insert (holds everything!) with or without external matching pouches.
Add a second OMD EM5 in place of the Pen F, the 25 f1.8 and 75 f1.8 lenses and a pair of Yong Nuo flashes with controller for a quick studio option. This OMD is set up for flash (myset1) and sport (myset2) . The 40-150 gets a fixed metal hood to allow it to be "at the ready" and stand on it's own on the ground or in the F802 bag.
Filson Camera bag (pictured) in winter or Domke F3x in summer, both bags are waxed for weather proofing and there are plenty of other options for this small kit.
EPM-2 with the 17mm f1.8. ISO is either set to automatic with 400-1600 as default range, shutter priority used and the lens set to MF/5 foot. This one is on a 30" Gordy strap as the walking grab shot set up. This camera is small, unassuming, has better shut off's than the other cameras making it hard to bump and the on/off button is on top so all functions can be used by thumb.
OMD EM5 (Silver-less serious looking than black) set (myset1) as above mounted with the 45mm f1.8. This one has a left hand wrist strap and is the candid portrait camera, often using the rear screen at waist height.
Travel (add to the above)
The Tokyo porter (pictured) or Filson bag is used, the Filson for a more travel, less photo or winter trip, the Porter as a summer/street bag. The Porter has a little strap clip to hold the camera's leather strap in place that can also be put on the Domke.
The 75-300 is always taken and the solid 14-42 thrown in as a wide angle option just in case.
Too much? probably. The fact is I could function (and have) with either kit for most tasks, but the OMD cameras in particular are a resource I have grown fond of and want good longevity out of. I also like my kits to be set up and ready to go for specific tasks (nothing freaks me out more than pulling a kit together at short notice). The Pen Mini, that cost me $200 S/H is a bonus as each frame it takes, saves me one from the EM5's and the Pen F was bought for a needed feature set. The butchers bill for all of my cameras, with reductions, second hand and swaps is about $4000 au. As for lenses, well, what would I sell? I hate letting good glass go and each has it's place (I just don't carry it all at once).
The future is probably an all purpose EM1 Mk2 to go with the Pen F, but not for awhile.
* The Inverse has it's waist straps removed (unpicked), allowing it to be attached to an actual back pack's waist belt.
** This kit is stored in the pro tactic, which is also used for travelling on a plane as it is an excellent foot rest.