What type of policies do other companies have about staff bringing in their own tools to use at work - this could be either hand tools or power tools. And if this is permitted how do you manage maintenance of those tools??? Any feedback is welcome.

We do the same. We also have the tools covered on our own insurance as they are left on site and secured overnight.

What if you extend 'tools' to include IT equipment? Pretty much any IT department is liable to have conniptions when someone suggests plugging their machine from home into the company networks, but actually BYOD ('bring your own device') is a rising trend for IT. In this context I'm less concerned about the security and IT implications, but what do you do about the plethora of tablets popping up in the workplace - worked on at all sorts of odd angles, with horrible ergonomics, terrible posture, repetitive actions... And I should declare an interest - I do bring my tablet to work, and since I bought it a year or whatever ago, I hardly ever print material to read, or take actual paper to meeting. If anyone proposed we simply forbade tablet use, I'd probably ignore it. Does anyone else have any policy in place trying to marry workstation assessments requirements to the ways of working with tablets?