I used 3M caulk remover when I had to remove the caulk connecting my countertop to the wall. The backsplash area I would call it around the sink. It went farther beyond the sink than that actually and the caulk was difficult to remove without some help. 

So I bought the 3M caulk remover from Menards and it kind of dissolves the caulk or something, making it easy to remove. I like it. I just put it on top of the caulk and let it sit for a while to do its magic, then the caulk is easy to remove.