Will smart plugs work if my internet goes down?

Schedules set on most Kasa plugs run locally even without internet. You lose remote control but the lights still follow their schedule. Consider a UPS for your router for extra reliability.

Should I post on social media that I have cameras?

Visible cameras deter most burglars, but avoid posting your exact travel dates on social media. A generic security sign combined with visible cameras is the strongest deterrent.

Best Smart Home Devices to Protect Your Home