We only need high quality and original contents. One best solution should be good enough for regular people to handle their problems.
For travel plans, it should at least include: the name of the plan, target users, the place (whole world, or whole country, or specific region, province, or city), length of stay, transportations, accommodations, the travel route, and detailed explanations.
For other fun solutions, it should at least include: the name of the solution, target users, and detailed explanations. Most importantly, the solution should be able to bring lots of fun to people.