In 2026, 100 Mexican Pesos (MXN) is a modest amount that serves best for small daily transactions and local street culture. Due to inflation and the "Super Peso" exchange rate trends, 100 pesos will typically buy you two to three high-quality street tacos at a local taquería, a 1.5-liter bottle of water plus a small snack at an OXXO convenience store, or a single domestic beer in a non-tourist neighborhood bar. In Mexico City, it is enough for about 20 rides on the Metro or a short "colectivo" van trip between villages. It is also a standard "generous" tip for a bellhop or a parking attendant. While it won't cover a sit-down meal in a tourist hub like Cancún or Playa del Carmen, it remains an essential denomination to carry for the "informal" economy of Mexico, where small cash payments are still the lifeblood of local markets and transit.