1st tip: If you are using a more recent version of adobe illustrator than they are, export it to whatever version they are using. They were able to open my more recent version in photoshop to print and the results were good but not fantastic...different colors and bleeding.
2nd tip: Probably been said before but have it laminated. Especially if you have portions that are dark or black. Scuffs and shows smudges if not laminated. I felt the material I was using before and it didn't seem like it needed it...but it does.
Edit:
Disregard the following good review for Kinkos...Although it does look fantastic, I just inspected a scrap piece I cut out and they reprinted on paper instead of the vinyl I paid for. Ok I guess if it never gets wet, but still not what I paid for.
End Edit.
Anyway, the second printing they absolutely nailed it. Perfect print and they laminated for free for whatever reason...I guess just being nice. Paid $6/square foot. Just thought I'd share a good (relatively) story about Kinkos printing since there seeems to be a lack of it. I believe if I had done those two things the first time it would have turned out just as good as the second.
Does anyone else have any other good tips. (I also followed someone elses tip of sizing the artwork to what I need it to be in illustrator so all they have to do is "PRINT".)