Payment methods in the Windows Store include credit cards and PayPal.

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This year it is expanding the offering to include more robust methods of collaboration, education and self-promotion.

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Over the years, however, the competition has evolved to include more sophisticated methods of hurling baked goods.

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Methods that have been tried in the past include the release of South American weevils that eat the plant, as well as machinery that shreds from the water surface.

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Other diffusion methods include aromatherapy, light therapy and the half-smile approach.

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Grades 6-12: Some lessons include information on HIV testing and address methods of prevention, including the correct and consistent use of condoms, which can greatly reduce the risk of infection from people who are sexually active.

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Other educational options include lectures on labor law, green home-cleaning methods and sourcing the right nanny.

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