Ridley's Cohort said:
I do not need spend a standard action to put on a magic shield. Or an item of clothing, like a magic cloak. Or a helm, magic or not. Why would it be different for a blindfold?
In fact, I don't see the action required to wear or unwear ANYTHING, except magic weapons and shields, which both require a move action (or are bundled with a move action). Or armour, which tends to be measured in 5s or 10s of combat rounds.
However I do see something that says "activate a magic item other than a potion or oil", and it says that it's a standard action.
So - I think saying "it's a standard action to wear or unwear a piece of clothing, magic or no" is probably being generous. Usually you'd also have to get said piece of clothing out - but I'll let you skip that 'cause you're wearing it on your head.
Use activated items are not usually activated by standard actions, although some are. Worn items are generally activated by being worn.
I did not see anything about 1 foot features in the description of the DMG.
From special abilities and effects, blindsight:
Blindsight (Ex): This extraordinary ability is similar to blindsense, but is far more discerning. Using nonvisual senses, such as sensitivity to vibrations, keen smell, acute hearing, or echolocation, a creature with blindsight maneuvers and fights as well as a sighted creature.
This ability makes invisibility, darkness, and most kinds of concealment irrelevant (though it still can’t see ethereal creatures), though the creature must have line of effect to a creature or object to discern that creature or object. The ability’s range is specified in the creature’s descriptive text. The creature usually does not need to make Spot or Listen checks to notice creatures within range of its blindsight ability. Unless noted otherwise, blindsight is continuous, and the creature need do nothing to use it. Some forms of blindsight, however, must be triggered as a free action. If so, this is noted in the creature’s description. If a creature must trigger its blindsight ability, the creature gains the benefits of blindsight only during its turn. This ability operates out to a range specified in the creature description.
* Blindsight never allows a creature to distinguish color or visual contrast. A creature cannot read with blindsight.
* Blindsight does not subject a creature to gaze attacks (even though darkvision does).
* Blinding attacks do not penalize creatures using blindsight.
* Deafening attacks thwart blindsight if it relies on hearing.
* Blindsight works underwater but not in a vacuum.
* Blindsight negates displacement and blur effects.
From aiming a spell, line of effect:
Line of Effect: A line of effect is a straight, unblocked path that indicates what a spell can affect. A line of effect is canceled by a solid barrier. It’s like line of sight for ranged weapons, except that it’s not blocked by fog, darkness, and other factors that limit normal sight.
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spell specific stuff, cut.
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An otherwise solid barrier with a hole of at least 1 square foot through it does not block a spell’s line of effect. Such an opening means that the 5-foot length of wall containing the hole is no longer considered a barrier for purposes of a spell’s line of effect.
This is the only reference in the game that defines line of effect. I doubt that the exception for 1-foot barriers should be discarded simply because blindsight is not a spell, but if you do think so, then blindsight gets worse (not to mention wierd...)
Personally, I would love it to be true. As I understand it, Blindsight is unnecessarily uberpowerful.
That's the best I can do. If someone else can find another reference for "line of effect", then please do so - I'm limited to the SRD currently.