This might be just an old Italian thing, but my Mom always used hot tea to clean up sap, I've used it on the truck, it works and leaves no mess at all and for those really tuff spots, leave the tea bag on for a few minutes...alot cheaper than most cleaners too
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"If common sense was common,everyone would have it"

Ironhorsetim
"Always do sober,what you say you'll do drunk,
That will teach you to keep your mouth shut"

Ernest Hemmingway