Put tracking stickers on objects that you lose often, like keys, phone, wallet etc. Tell the app on your device what THAT sticker is on ("car keys"). Then when you need to find it, use the app to find that sticker (and your keys).
Why does our bicycle need to be connected to light poles by chains like a criminal in prison? Inspired by nature, the design of this cable wire lock is a mimicry of ivy. However, I'm afraid someone would steal your cable lock instead!