Depending upon what kind of issues you are having with your pizza, pizza inserts/ripple board could alleviate many of the downfalls of takeout and delivery pizza. The main problem with putting a pizza inside a box is the basic fundamentals of thermodynamics. Heat wants to transfer from an area of higher temperature to an area of lower temperature. Therefore, by the entire bottom of the pizza touching a pizza box/corrugated circle/wax sheet, heat is transferring out of your pizza faster than if it was sitting on a pizza insert/ripple board. As ripple boards also reduce heat loss they are also allowing air flow to flow under the pizza (removing moisture, maintaining crispiness) and collecting excess oils from your meats and vegetables. The best part is these inserts are available for pennies per sheet.