Ever Put Your Wrench In The Dishwasher? It’s Ok, Guys!
Don't start in with the sexism, now. I know.. I said "guys", but let's face it - it probably WOULD be a guy who would sneakily (while his wife wasn't home) pace his prized Craftsman wrench in the dishwasher to get the grease off of it. Talk about arguments? I can hear them right now. But according to CNET.com, you shouldn't feel guilty.
There are actually a lot of items that they advocate putting in the dishwasher for men AND women. Some you wouldn't think of. According to CNET.com, it's actually, for example, OK to put a hubcap in there. Yes. ! Throw in some vinegar too along with detergent. Works great (I've never tried it, but this is what I hear)
How about your scuzzy old baseball cap? YES. Put it in a coffee can, they say, before putting it in the machine. It will help to keep it's shape.
Ok -this is super gross. Your mouth guard! I'm not sure I'd want that in the dishwasher mixed in with my coffee cups, but I guess you can do that too.
Disclaimer: If what you put in the machine creates marital conflict and/or creates a situation where divorce is imminent, please do not blame me or CNET. Your experiences may vary.
Here's the whole list once again CNET.com.