I realize this post is 2 years old but someone may have the same question.I use Microsoft One Note for Desktops, it's free and stores your notes in notebooks with tags that are easily searchable for reference later.I have notebooks for Note Investing, Real Estate Investing, Information Technology, and Digital Marketing.Usually, something that I'm studying falls into one of those categories and each notebook has subcategories. 

@Alec Jacobs We typically m aside the windows and buy our own and usually get a quote based on the measurements from both the box stores and an independent glass company.

@Mike HernI bet you can go to your local grocery store and also find these types of deals like you can your favorite cereal.

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.

If I select the forms on the BP website, it redirects me to the book store website. 

That kind of thing would only apply to capital elements of the house. 

I generally advise my clients to skip properties that are near main street traffic or commercial buildings/stores.

I guess you havent been to the grocery store in the last couple years , filled up your gas tank , paid your insurance , or bought a car  ? 

In this market, they don't have to.However, we have now also an element that makes our job much easier as investors: appreciation.

@Chris Jordison Check out the bigger pockets book store.