Biggest thing is improving your shooting so you can comfortably shoot 30-40 yards (gives you more chances at shooting a deer). The next biggest thing is to set up your stands to take advantage of the most common wind direction.
Few other tips:
1. If you are hunting woods, try to find stands of oak trees that are dropping a good deal of acorns. Place your stand in the feeding area or between it and a bedding area.
2. If you are hunting fields, see where the deer are coming into the field and place a stand 10-15yrds away from the entry point or near where they feed once they get into the field.
3. Depending on the time of season, use decoys and scents (...and to a lesser extent calls) to make them curious and bring them into your shooting range.