mechanic's bag

I use one of these to take on trips. I just emptied it out to clean and sort and I can't believe all the crap inside. There must have been 75 batteries, enough tools to build a house and a couple of more knives, not to mention gloves, flashlights, estrous scents, ect ect. One thing I do every year is to discard all leftover scent eliminator spray and start each year with new. I'm not sure if these sprays are still good but it's cheap insurance just to start with new.