I've been doing a VERY intensive line of interviews the last two weeks. I had to take a personal day off on Wednesday to do about 6. I am now in most of my second interview processes with exceptions of about 2 companies that I had to fill in. I have a top 3 and I just got a offer from my 4th choice. It would be great opportunity in terms of the next step in my title but I would rather get into a large corporation. I had a really great interview with my number 1 choice on Wednesday and the regional manager liked me so much that he is wanting to take me on a lunch interview this Monday. The problem is, I have until Monday to accept or decline the offer. Because it's my 4th choice and I would most likely decline it because I know exactly where I want to be and where I would better advance myself in the future, how do I play it safe later with all my other options (assuming they all turn our great)?