The J.Crew sample sale started yesterday. Supposedly, there is a pretty large selection on offer, including clothing, shoes, accessories, and jewelry (apparently there's a lot of good jewelry for sale!). Prices should be significantly discounted, so if you're a J.Crew fan (I think it's hard not to be), it's worth checking out! My one piece of advice would be to peruse J.Crew's online site before going to the sale, since some reviews indicate that there were some items cheaper online than at the sample sale (plus you get the benefits of returning when you buy online!). But in general, I'd recommend this practice before going to any sample sale--it's always a good idea to be an educated consumer and not be suckered into buying non-returnable items when there's a similarly-priced alternative. Just my 2 cents.
Anyway, if you want more details about the sale check out Racked's review. The sale is located at 260 Fifth Ave., between 28th and 29th Street (same location as the DVF sample sale). It runs until this Saturday, June 18. Hours are Wed-Fri: 10-8, an Sat: 10-4.