What you should not use: I had a professor a few years ago who, when characterizing Zillow, described it as being "porn for real estate investors".

Cleaning out the stack of porn mags after a tenant move out. 

. :)i went to HD at 6am for 2 weeks and found people that wanted too much money for average amount of work.I use CL now for handyman stuff.

Even if you plan on rehabbing that many houses, storing them costs you a chunk, too.Besides, I doubt you will be able to buy the Moen faucet at H-D in China somewhere.

It was full of porn.

HD and Lowes both honor this rebate as well.

We have an event coming up in April at HD HQ. 

The building industry has been around long before HD, Amazon etc.

I used a faucet as an example because that is an item that normally breaks down first and often observe customers walking down the fixture aisle at HD or Lowes looking for the least expensive option, whereas purchasing inexpensive tile or other cosmetic items won't necessarily cause maintenance issues although I would argue will cost you revenue (more on this below). 

@Erich HD SchmittWelcome again ...