^ The 10K think is kinda like folklore. I routinely shuffle around amounts much larger than that for a variety of reasons and in all sorts of directions, nobody has ever come asking questions, but if they did I would quickly instruct such enquirer to "suck it"
Watch the border security shows. If they catch you with undeclared cash over $10k, it will be confiscated if you can't prove the source and they'll tell you to "suck it" and you leave with 10k less. Of course everything is fine if they don't catch you but that's the same with drugs and all other contraband.
