1. A method comprising: receiving, by a first computer system, a first signal from a first appliance, wherein the first signal is indicative of a single use of a particular fast-moving consumer good (FMCG) by the first appliance; updating in a memory, by the first computer system, a current memorized state of at least one processing event, the current memorized state being based on i) the first signal and ii) a previous memorized state, such that the previous memorized state comprises an estimate of an amount of the FMCG that has already been used since a previous resupplying of the FMCG; generating, by the first computer system, a first indication that the FMCG is to be resupplied, based on the current memorized state; transmitting, by the first computer system, a resupply message to a second computer system, wherein the transmitted resupply message is based on the generated first indication, and wherein the second computer system resupplies the FMCG based on receiving the transmitted resupply message; and determining a time to deliver the FMCG based on anticipating a need for the FMCG during a first period of time in an environment in which the first appliance is situated, wherein the need is anticipated based on the number of people expected to be present within the environment during both the first period of time and a second period of time.