If it is safer, (due to weight or difficulty) double or triple portage

There is absolutely nothing to be gained by hurting ones self.

M and A

Sorry to be negative, but I disagree with the premise.  The usefulness of any thing like this is inversely proportional to its length.  Look what lawyers do, they make so much fine print, nobody reads it making it totally useless (for the reader).

If you want this to be useful, figure out the most important items and make a top 10 list.  I think WiF's last item, slightly modified, covers many things listed separately by others:

  1. Expect and plan for the worst, hope for the best. "Learn how to laugh when things get tough. Especially at yourself."

Stick to the portage trail.  "Short cuts" may be ill-advised.                     Jimbo  

OK, if personal safety is the focus...

Rule #1: THINK!
      as in...think about the guy in the stern when casting from the bow
            ...think about what's below the surface when jumping off this cliff
            ...think about this tentsite if it rains; or gets windy
            ...think about where I set my canoe at the end of the portage, in case someone else needs some room
            ...think about how hot that pot handle is before I grab it bare-handed
            ...think who's behind me when I grab this branch on the portage
            ...think about staying in camp if the wind is up
            ...think about taking it a little slower on the portage trail; what's the rush?
            ...think about where you put your raingear, BEFORE you start paddling
            ...think about putting footwear on when making a night time nature call
            ...think about the consequences of NOT taking the time to filter this drinking water
            ...think about taking a compass bearing BEFORE making a big open water crossing
            ...think about poison ivy when "exploring" or bushwhackng
            ...think about how far your partner will have to haul your butt if you do something stupid and get hurt
            ...think about not cussing on a portage when others are around, in case they don't appreciate it

think I'll give it a break

WiF

Guess I didn't THINK how wide this topic could get!  Counted 62 rules so far....
63- Don't swim in the rapids...THINK about the tree snags hidden under water you could get tangled in.
64-  Don't eat wild food items unless you are sure they are safe...there are several with look-alike counterparts which are deadly.
65-  Don't pitch your tent under White Pines on hot summer days...they rain pitch droplets.
66-  Cover your firewood or put it under the canoe or tarp at night to have dry kindling in the morning.
67-  Collect some birch bark along your portages.  It is easier to find there and you always will have a dry supply.
68-  Traveling in the rain?  Put two or three 2 inch diameter beaver sticks under your packs on bottom of canoe to keep them dryer.