after reading again didnt explain about the carabiners. can be used to attach various things to your belt or pack for ease of use even the non climbing carabiners you can get. A lot of the things in my EDC seem to have loops on them or split rings. So one is useful. I added more since they are so handy <img src="images/graemlins/grin.gif" alt="" /> some examples I'm sure you could think of more

tie to paracord for a handle so you can haul on it without damaging your hands so readily

use on a loop on a pack to form a handle for ease of use or hauling (a friend of mine in the Royal Navy always has one on his rucksac since it can be used to clip said rucsac securly to the line when transfering between ships)

locking one makes for secure fastening on packs on the bike at "reasonable" 200 mile commuting on motorway speeds

along with tape sling can be very quickly looped round a tree trunk above a branch as an anchor point for shelter tarp (I know I could tie paracord but this is much quicker) or as an anchor for hauling gear up or lowering down a slope or a safety line

improvised knuckle duster to break car window in an emergency (note - havent actually tried this)