Less Wrong Product & Service Recommendations

I have of­ten benefited from recom­men­da­tions for Things I Didn’t Know I Wanted.

Given that Less Wrong is a com­mu­nity of un­usu­ally in­tel­li­gent, crit­i­cal, and self-im­prove­ment-fo­cused peo­ple, I sus­pect we can gen­er­ate a pretty helpful thread of product recom­men­da­tions — per­haps even a monthly thread of product recom­men­da­tions.

Rules:

  • Post one product your recom­mend per com­ment, so they can be dis­cussed and voted on in­de­pen­dently.

  • Provide a link for pur­chas­ing the product.

  • No books, movies, TV, games, or mu­sic. (Th­ese should go in other threads, like this one or this one.)

I’ll post my own recom­men­da­tions to the com­ments sec­tion, too.