I'm going tomorrow and have been compiling information, so I'll share it with you.
At Main St. Opera House in DL, every day but 2/9, they are showing episodes of the old
Disneyland/Wonderful World of Color show, like they did last year for Wednesdays with Walt. You pick up wrist bands starting at noon from in front of the Opera House, the showings are every 90 minutes beginning at 5pm until park close (i.e. 5:00, 6:30, maybe 8:00 if the park is open after 8pm that night). These videos usually last 45-60 minutes. You'll get a bottle of water and a bag of prepackaged popcorn. You can also pick up the button of the week and the special map of the week there.
At Blue Sky Cellar in DCA, every day from opening until one hour before close (except 2/8 & 2/9 when it is closing earlier), they've got the buttons, both recipe cards and maps for the week, as well as a coloring station (yesterday's pics were all of people coloring Mickey Mouse here) and a continuous loop of cartoons and historical footage. They also have a help desk for the Photopass pictures you can take at different places.
Stage 17 at DCA is open from 11:00am to park close (except 2/2 closes early, dark on 2/7, 2/8, 2/12, 2/13, early on 2/17 dark on 2/24). They have the themed photo canvas, short films, free water and popcorn, buttons and maps, and pictures with special characters every 45 minutes.
Yesterday 2/1, the character was Jiminy Cricket. I'm spoiling this, because I asked the Disney AP organizers on Twitter if there would be more characters, and they said that there will be several characters rotating throughout the month, but that they won't announce who that special character will be until that day. I also noticed that there was a coloring station set up at Stage 17 that had pictures of Jiminy Cricket, so that may change each day with the character available also. Have not seen anything yet about whether the special characters are available on days when Stage 17 is closed.
My understanding is each week, you can get photos in front of the themed canvas at Stage 17, the Character at Stage 17 and the generic APDays Step and Repeat, which I think may be at the Opera House (no one on Twitter or Instagram has said where it is yet). And the way Disneyland talks about these AP only photo ops, it sounds like you should be able to get free downloads of the pictures (like you can at other AP only parties).
Also, the recipe cards are available at select restaurants, in addition to Sky Cellar. This week the recipes are for Walt's chili and a Lemon Chiffon Pie Walt loved. The restaurants where you could also get the recipes were Jolly Holiday in DL and Clarabelle's at DCA. Week 2 is Smokejumpers at DCA and Bengal Barbecue at DL. Week 3 Village Haus at DL and Paradise Garden Grill at DCA. Week 4 Red Rocket's Pizza at DL and Award Weiners at DCA
If you want more info, and you have Twitter or Instagram, just follow the #APDAYS hashtag and see what people are posting each day.