Abstract: According to an aspect there is provided a computer-implemented method of providing feedback to a user of a shaving device during a shaving operation. The method comprises determining values for one or more parameters, the one or more parameters comprising at least one of: (i) a shaving frequency measure indicating how often the user performs a shaving operation using the shaving device, (ii) a skin irritation measure indicating skin irritation experienced by the user during and/or following a shaving operation with the shaving device, (iii) a shaving closeness measure indicating how short the user desires their hair to be after a shaving operation with the shaving device, and (iv) whether the shaving device is used on wet or dry skin during the shaving operation.

Abstract: In an embodiment, a method implemented by one or more processors, comprising: receiving one or more recordings of one or more consequences of one or more of activity or inactivity of a user related to a predetermined goal; determining that an opportunity for the user to engage in, or refrain from, a subsequent activity that will affect progression of the predetermined goal is present; and triggering a playback of the one or more recordings to the user based on the determined opportunity.