Wal-Mart? Any tips on using them as far as file prep?

Do you know what printer profile they use?

2 of the 10 had some crappy trimming of the paper done but it's not a big deal. For $1.46 at 8 x 12 it's a steal and will do the PR job it needs to do.

walmart and target have been garbage every time i have used them. Just make sure you turn off auto-correction on the final page before confirming your order. Otherwise, your colors and tone curve turn out really wonky.

but walmart and target have just been crap for me regardless of calibration. the images just look soft regardless of what gets printed, whereas costco looks essentially perfect