all the time. Actually 2 days ago I was working on an embroidery project and "thought" I misplaced my embroidery foot. I'm very anal about where I keep my feet and notions so I looked for at least 10 minutes around my sewing space with no luck. I finally thought I will have to go to the sewing machine shop to pick up another one (and getting very mad at myself for misplacing it). I then found it right in front of me - I don't even remember taking it out of the drawer. This is very frustrating for me and, lately, it's happening more frequently. I'm going to call me doctor to see if she can help me understand what is causing this.
In my case, it's probably a memory issue relating to my fibromyalgia.