We have a Costco membership and they carry Organic Valley milk 2 for $9.75, so almost comparable to standard milk in the grocery store. Organic Valley is $5.99 a gallon elsewhere. I save on that and locally grown free range, organic eggs, $3.99 for 18. I have bought organic meat there, but since we bought a quarter of a cow earlier in the year, I don't need more meat. I also bought 7 local, pastured chickens, and we're working our way through those. I won't need to buy any meat in October!

I also picked up my grain CSA shipment yesterday, so I won't need any grains this month, either.
I'll probably spend money this weekend. Our CSA is having a "Hoes Down Harvest Festival" with organic food, farm tours, a farmer's market and crafts, and live music. I'm happy to support them and their "on-farm benefit for sustainable agriculture", but it's $20 per person, $5 for kids, so at the very least we'll spend $45 for entry, plus food at the farmer's market.
I'm glad I started my no spend TODAY and not yesterday. Yesterday, I 1bought a lot of toddler clothes off Craigslist for $100 for more than 125 pieces, mostly brand names and in great condition. I separated it into 6 lots and posted them on Ebay. Boys lots go for a good $2-4 or more per item than I paid, so I should at least double my investment. I also kept quite a bit for DS, a whole fall wardrobe, getting those items essentially for free after the Ebay lots are sold.

I'd post links to my Ebay listings, but that would encourage you no-spenders to spend, haha.
My goal for October is to earn/save $1000 by no-spending and doing extra jobs and selling stuff. I'd like to track that here, too, if no one minds!
I sold candles leftover from our wedding 3 years ago. That's $35 of the $1000already!
I also picked fruit off of neighbor's trees, with permission of course. I estimate my savings at $31.40 for lemons, limes, and oranges, and two enormous zucchinis. I juiced the lemons and limes into ice cube trays and will have juice cubes for when I need lemon or lime for a recipe or to liven up water. I'll shred the zucchini for the freezer later.
I've earned/saved $66.40 so far, and will report back after the Ebay sales to update.
October 1: No spending! +$66.40