Only one? I don't know that depends do we have foresite on the market in going back? Timing when we would buy our first house would have been different if we knew what the housing market was doing. We would have waited 5 more years to buy. We would be ahead because we are getting 12K for our home after all is said and done. We put at least that into remodeling so if we had rented even a really nice appartment we would have been able to save up at least 12K if not more then with a low interest rate and the 8K tax credit we would have more to go toward a nicer house now. Or we might have bought as soon as we were married if we had known DHs Job was secure. (he started 2 weeks after our honeymoon) Fore site might have had us investing and pulling out before the market turned or just putting funds into companies we know to suceed.
I might have chosen a different career path
We would have donated more in 2005. Just a few more deductions would have put us in a lower tax bracket.
Other things Eat out less, use the library more, buy a less expensive car.
I think on the big choices we made the right choice with the knowledge we had at the time. No real regrets