Yes, that wonderful time where vendors (and members) of Avian Avenue offer sales simultaneously for three consecutive days is just around the corner!
This year, the sale will be held from September 6th to the 8th. Participating vendors have started to be announced and you can see the list (so far) here:
The Official Sidewalk Sale Fall 2013 Thread
Some sales have also started to appear. This year, "Guest Vendors" (Business for whom one of the organizers can vouch for but aren't necessarily members of the forum) have made an appearance.
In the past, I've been known to indulge (I can never really resist a good sale), but I'll try to be a bit more reasonable this year and will most likely only shop with 3 vendors, all of them Canadian (easier for shipping costs and they are toys that my birds all love).
Technically, the sale is for forum members so, if you haven't already done so, come and sign up!