I know, I know, you are probably thinking, "What the heck are steak charms?"  Steak charms or steak markers are small, dime-sized stainless steel markers that you can push into the steaks you are grilling to identify those that you are cooking to rare or medium rare or medium.  No more guessing which was which, just push into the meat and you'll remember exactly which steak was which.  These charms conduct heat, so the meat cooks around them as well.

The markers are serrated so they'll stay in place while you flip the meat.  They are really easy to use and I'll bet that this is something that your dad does not have for his grill!

See Steak Charms for more information.