Don't use the word "between" !!

While negotiating

It often feels reasonable—and therefore like progress—to throw out a range. With a customer, that may mean saying "I can do this for between Rs. 10,000 and Rs. 15,000." With a potential hire, you could be tempted to say, "You can start between August 1 and August 15." But that word between tends to be tantamount to a concession, and any shrewd negotiator with whom you deal will swiftly zero-in on the cheaper price or the later deadline. In other words, you will find that by saying the word between you will automatically have conceded ground without extracting anything in return.