How Early Is Too Early?

My crack PR team (aka - me, myself, and I) have pulled together a list of top blogs that I'd like to send some of my new product info to. It's all holiday products so I'm wondering how far in advance that should be sent. I was originally thinking late October but I've started seeing folks on HARO (www.helpareporter.com) asking for holiday items and am wondering if perhaps I should start now? Any thoughts?