for "around-the-house" jogging, I carry only the following :
- apt keys, either kept in hand or in a zippered pocket ;
- neck lanyard with a fred Perrin's "Griffe" and a red Photon III
- once the lanyard is around my neck, I shorten it with the help of a safety-pin, just so it doesn't bounce around too much, under my T-shirt.
- I may add a whistle to that lanyard