Hi Wendy
I do believe objects hold vibrations. I know they do- when I've done psychometry I've been able to work things out by holding objects- even identifying exactly what they are through an envelope. For example I got a feeling of joy holding an envelope with tickets for a gospel choir evening. Some of this will be my guides helping me out, but I think some comes direct from the object.
Metal and crystals hold onto vibration strongly, as do the stones we build our houses from, but even clothes can hold energy. It's best to wash clothes straight away if something bad happens whilst wearing them (get indoors first!!). Cleanse jewellery well- my article should help:
Cleansing Your Crystals Some of the energy is your own personal connection with the event, the object reminds you of it & you then send out thought patterns that bring similar situations. If things evoke bad memories for you toss them out or give them away to someone who won't have the same associations.
Hope this helps!