Regifting has become a popular addition to many white elephant gift exchanges or yankee swap events. There are no rules that specifically prohibit or encourage the practice of regifting at these parties, but generally the host of the party suggests regifting if it is an option. However, if the host suggests a spending limit for the party, it is generally poor etiquette to regift in lieu of making a purchase. The online variations of these exchanges eliminate this situation through their online purchasing requirements. One example of a formalization of this activity are the white elephant gift exchanges, in which items can be regifted from year to year.