I had an appointment for a vasectomy referral a year and a half ago (our insurance is an HMO that due to their Catholic affiliation doesn't do sterilization procedures, so a referral to a outside provider is required), and it never went through. I haven't followed up since, because due to family and work issues I don't think I could devote the proper time to recover from a vasectomy right now.
We've just been tracking the wife's cycle and using condoms during the fertile times for the last two and a half years since our daughter was born. The first part of our marriage my wife was on the pill up until she got pregnant with our son while on the pill six years in. After that we stopped the pill and went to our current tracking her cycle and condom method, which has worked well except for when we got a little carried away once, and our daughter came along 9 months later! My only regret there is that she wasn't twins, because she's an absolute hoot, the most loveable goofball kid ever. Two of her would be epic!
I'll probably end up scheduling another referral appointment soon though, hopefully it will actually happen this time.