As far as camera placement. I'm as tempted as the next guy to run out and check cameras. I agree, use caution when checking cameras this time of year and always. Maintaining proper scent control in key even in the summer. Personally I hang cameras only on field edges this time of year. I limit getting too far into the woods. As of now I'm only checking cameras every 2 weeks or so. Like Rutin said deer will accept some human pressure, but not too much. It mostly depends on where you're hunting. I have a lot of agriculture around so the deer are some what used to tractors, four wheelers, and trucks. Use common sense and don't over do it.
Trail cameras have cost me more bucks over the years because I was over aggressive.
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast."