I have two knitting bags I use, depending on the size of the project, and one knitting notions kit packed with tools. I would be crushed if I lost any of them.
I recently read on Mason-Dixon Knitting that Kay left her knitting behind more than once in a week's time. The day after I read that, one of my knitting friends relayed a similar story about rushing back to the doctor's waiting room to retrieve forgotten knitting. I had a brain wave... why not put our name and phone number in our bags?
I realize I could've just hand lettered a label and called it done. But it was a great opportunity to get out the manual for my machine and practice creating and saving stitches to the memory.
Label your knitting bag!