I post 2-3 pictures per day but only one giveaway photo per week. As for the giveaway itself, I usually make a fake private account and just change the name everytime. I then say: congrats to *random name* please post a photo of the item to confirm that we're legit. Afterwards, I'll find some random guy holding it on the 15th page of google. However, if you wanted to, you could just give away cheaper items. My followers haven't really thought it was sketch yet. They like the idea of doing a survey to insure that people don't spam that contest. It makes it fair. Also, I get large amounts of new followers everyday who haven't yet entered a giveaway.