Place a towel or piece of fabric on your pressing station. Sprinkle some salt on the fabric. I used coarse salt like the kind you get on soft pretzels.
Heat your iron and rub across the salt until the goopy mess is gone. This takes relatively little effort.
Whew! Thank goodness I remembered that trick. Now I can use my iron again without having to run to the store for iron cleaner. Do they even sell that stuff anymore?
I think it cleaned up rather nicely, don't you? No more melted plastic gumming things up.