I always use the simple things like ear plugs, gloves, eye wear, proper shoes etc. My HiViz jacket though is truly amazing. Since I've been wearing it I've not once been attacked by crocodiles, spontaneously combusted nor been mugged. I've nearly been run over a few times but wearing it means I can (and bloody will) sue for full compo if I do. Box ticking (or bollox tickling) safety.
PM