It's no doubt free if you can find the material online. 

We had to keep the footprint and a certain percentage of the old material to keep the tree police happy.

I guess you could also say in a year and a half and you haven't driven the property?

Last year I pulled in $36,000 in less than 3 months, invested in the furniture and materials for the daycare, and focused on enjoying motherhood while developing my curriculum.

You're taking raw materials (junky houses, materials), applying a process (labor) and creating a finished good (a nice house) which you sell for a profit.

The rekey has always happened within a few days before closing generally at a price of around $100 for a couple locks (so about $20 in materials, they always use the cheap Home Depot brand ones).

I have no question that I will be where I need to be in the next year because I know I'm driven and I know I'm committed.

In order to calculate your net income for a given year your number one priority should be to keep an accurate accounting of your project revenue & project expenses.Revenue for flipping is easy to track because it is generally just one entry for the resale value of the property.Expenses get a bit more complicated because you will likely have a 100+ transactions for purchasing materials, paying contractors, & paying utility bills.  

Yawn, Ive been reading that on this site for 10 years, reading it in the news for 15 years since zillow came around, for 25 years since the mls went online.....yet it still has yet to materialize.

It's also very heavy...25 lbs, so it's not going anywhere.Total cost to me was $130 and I suspect that over time weather/sun will cause the material to deteriorate a bit, and I'll need to buy another one.