Your ability to control impulse changes once construction has started will go a long way to keeping your final sqft cost low.Good luck to you, It's such an exciting process!

My first impulse was to get my license and partner with her in real estate, but after reading everything we could get our hands on, we decided that we should become investors using her knowledge of real estate and my connections to contractors.  

My impulse is to track everything but i don't want to waste time tracking variables that really have no effect on the business.

I am not promoting impulsivity but rather asking you to pull the trigger when economic fundamentals and financial analysis make sense.Once you are bitten by the REI bug, it requires focus and steady fast work towards knowledge.

An impulsive decision could be a great deal, but it could also set you back ... so, proceed with reason and caution, not with heart (unless you can afford to throw away that money).

I was impulsive and so excited to see that huge check that I got tunnel vision.  

And yesterday i made a sudden impulse upon seeing a property undervalued and got it under contract.

@Chris Herman I have a HELOC on my primary, but after a few...impulse buys, it's all used up.

That could be very stressful though and that due date can lead to some impulse decisions....

It's the reasons investors wind up in over their heads, because they buy houses in the same impulsive blinded rush that they bought the how-to course with.