I came from the simple times when there were only two chioces for ISO, 25 and 64, Kodachrome. Also, other than interchangeable lenses, there were only f-stops and shutter speeds to worry about. Maybe that is the reason I like to keep my digital workflow simple. That said, I have developed two distinctly different avenues I use based on location and time. At our workshops or on location for an extended period I use Lightroom to import images. In Tanzania, with the limited amount of time for anything other than photography and sleep, I simply download my images to hard drives and get some sleep. Let me explain in detail both of these methods.
On location with time for cataloging: On trips to places like Oregon, Wyoming (at our workshops), etc. I take along either my 13" Macbook Air or my 10.6" Macbook Air. the 10.6" has a 128GB internal drive while the 13" has a 256GB internal hard drive. I consider the laptop as only a tool and not a storage device. I also carry two external hard drives, bus powered meaning they require no external power source but draw their power from the USB ports on the laptop. Depending on the trip, these drives vary from 2TB traditional spinning drives to a pair of 500GB Solid State drives with no moving parts. One of the drives becomes my primary while the other is used as the back up.
Linked is a PDF file which you can download and print. It has the basic things I do in the field with getting images onto drives and getting them home. If I am in a place where I have the time (usually not in Tanzania!) I create a Lightroom Catalog but that is really not necessary. Most important is to get your images onto a couple of reliable hard drives so you can format your cards and go shoot the next day.