I use a product called Un-du. Works like Goo-Gone, but does not leave an oily residu. Also, this product is great for lifting things that have been glued slightly crooked. I have been using it for years and have never had any trouble with it leaving a ring or showing after it is dry. After the paper dries (very quick) you can simply stick it down again, usually without more glue. Also does not harm photos if you decide to move them in scrapbooking. Love this product.
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