1) These shops are extremely repetitious and could easily be completed by printing a one page cheat sheet and the LOA. I have it memorized and just use voice to text on the notepad on my phone.
2) The more you do, the faster it goes. Mine take 30 minutes for a good location, and 50 for a bad.
3) Complete the survey by the flow of the store. Mystery shop with cashier section, exterior, entry, produce with required photo, meat with required photo, smoked meat, dairy, frozen, bakery, grocery, signage, restroom.
4) You don't have to rename the photos.
5) You don't have to resize the photos, but they'll upload so much more quickly that it's worth resizing. Use PixResizer - free and it resizes 100 4Meg photos to 640x480 in under ten seconds.
6) Keep in mind that you only submit a single photo of each deficiency per report section. If there's 15 outages in grocery, you only need to take and submit one photo showing the most outages that you can fit in one photo. I take two different outages photos per department, and one photo of each expired product in the store, just in case. For a bad store, I'm still only submitting about 12 photos. For a good store, just two or three photos.