This year (5772) is the fourth year of the Shemitta cycle, and as such, this Pesach is the time of Biur Maaserot. Does anyone have suggestions (from experience or sources) regarding how to best dispose of one's Maaser Sheni coin?
I'm going to the Dead Sea tomorrow. Redeem your coin onto my coin (by adding your name to the comments of my blog http://rabbisedley.blogspot.com/2012/04/biur-maaser.html) and I'll be your shaliach for destroying maaser sheni.
This specific offer has expired, but the general approach of appointing an agent as sh'liach still applies.