Prepare for a long rant. My neighbor borrows a lot of tools from me. I don't mind lending tools since I have a lot of tools. The problem is he keeps them for a long time. It never fails that the day after I lend him a tool, I need it. Meanwhile he is at work and my tools are locked up in his garage. This happened just yesterday. I do have a lot of tools and some that are very specialized. I don't mind letting others use them because they are usually just sitting unused in my workshop. But I would rather they sit unused in my workshop than in his garage. What bugs me is that he has money. He should just buy some of the tools. That's what I do. I start a project that needs a tool so I buy it. Sometimes I never use that tool again, but you never know. I do mark my name on the tools and sometimes spray paint them. I think I have lost a few unmarked tools to him in the past. I think my strategy will be to limit the time he has them. Maybe a day or two. Maybe I will have him return the tools at night so that he has to keep borrowing them. Maybe that will encourage him to buy a new his own. What do you guys recommend?