I just subscribed to Pro, but I seem to have 2 different accounts: one for this part of the site and another for the store.

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.

And finally, while there are likely some pro accounts that will only give you discounts if you are licensed, most will let anyone sign up, and are often based on volume spent at that store anyways.

I'm not crazy about the big box stores as they seem to charge too much. 

The point of going into real estate is either as a store of value or to make money--you make money primarily through value add--of which the simplest path is rehabs-go with an easy one while you learn the process.  

To replace the roof on a home with solar panels, to maintain the solar panel warranty, you will need to use their company to remove the panels, store them safely during roof work, and then use their company to replace the panels and make sure they are working again.

@James Wachob  Piggly Wiggly is an all time great for a name of a company or grocery store for those on the west coast who have no idea

What if you stuck with your job making pizzas at Domino's and worked your way up to owning a store, then another, then another?

I tried using the promo code in the store, and it could not apply the promo code. 

Finding the fixtures you want installed at the hardware store and pricing them is a must.