A robot as was in the movie Wall-E That can help you to clean, whuch can act as a device we can move in our home for secirity check also which could tell if any motion is detected when no one is in the housee, it could be used to remind your reminders and also could connect to your thermostay and oyher iot or smart devices.
Other robots from Synthiam community

Brw's New Robot And A Bluetooth Question
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Doombot's Doombot V1.0
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Dunning-Kruger's Ez Dog (Inmoov Frankendog Failure)
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