30) Every combatant should have a missile weapon and a backup weapon. Preferably of different damage types.
31) Every cleric should have a backup holy symbol. Every mage should have backup spell components. Every thief should have backup tools. Additional sets of these items should be spread around the party, if possible.
32) Be prepared. Carry water, food, oil, candles, tindertwigs, rope, mirror, spare sack, and a signal whistle, at the very least.
33) Know when to run.
34) Choose a combat leader. And follow his orders. TPKs happen when the party acts as a bunch of individuals, instead of as a team.
35) If you wear armor, get armor spikes. Or at least spiked gauntlets. You always threaten, and you're never unarmed.
36) Sleep in your armor. If you normally wear heavy armor, buy light armor and wear it when you sleep.
37) Everyone should carry a healing potion.
38) Have a plan in advance. Pre-prepare a strategy for situations like getting lost, losing a party member, and fleeing. Like you learn in disaster training at school, have a drill and a pre-arranged meeting spot.
39) If possible, have every party learn a little-used language (like Gnome). That way, you can privately converse during battle/negotiations. If the party can't spare the skill points, at least establish a few code phrases in Common.
40) Someone in the party should speak Draconic. It's the most commonly-encountered language, after Common.
41) Beware statues and pools.
42) Read the
SAS Survival Handbook. Especially if you're a Ranger.
-z