Do I need requisites to teleport clothed or not?

Something I think got forgotten in this surprisingly thorough discussion are the merits of short-range teleportation. Being able to move from rooftop to rooftop is very useful. Even a simple 5-pace "Passwall" from one room to another can a least be a good escape option. And even if just a convenience, low-magnitude teleportation is a lot easier to use in adverse auras (such as the increasingly ubiquitous Dominion).

Except that all ReCo 'teleport' spells mention that you need to be able to see the destination. Those of long range usually require an Arcane Connection to teleport if you can't see the destination.

true, however the "passwall" spell mentioned, if there is a big bruiser between you and the doorway, you can see through the doorway and thus teleport past.