Painfully
First Post
My original PH evolved from using small post-it notes, to index tabs as I would mark all the chapter headings, and other important charts. It was the best money I ever spent on RPGs that wasn't RPG related IMO. Index tabs save time EVERY time you open your book!
Now, for errata, I have found another solution. White-out tape. I use it to block out the old text, and then use a small red (or black) pen to carefully write-in the replacement text. If you want, you can cover this errata with clear tape to ensure that it does not get scratched off accidently, as some white-out tapes are not as permanent as others.
For larger sections like paragraphs, I will take the text of the errata (often edited to a smaller font size) and then print it out. Then I will trim the paper, cutting away any margins or unneccessary text. This new text is then taped into the book in such a way as to create a "flap" which will not cover the page in the book, but can be read, and lifted up from the page. I use clear scotch tape, and the direction of the flap prevents it from getting bent the wrong way when closing the book. I am, "taping the tape" to the book, if you will. It's easier to explain with a picture, but I hope you get the idea.
Anyway, those are the methods I've used, which just kind of evolved over the years that I have used and abused my books. Whenever possible, I prefer to keep all my hardcovers as pristine as possible, but traveling does wear down a book over time, and I can honestly say that I value my tabbed and errata'd books MUCH more than a brand new book that somebody else might own.
Now, for errata, I have found another solution. White-out tape. I use it to block out the old text, and then use a small red (or black) pen to carefully write-in the replacement text. If you want, you can cover this errata with clear tape to ensure that it does not get scratched off accidently, as some white-out tapes are not as permanent as others.
For larger sections like paragraphs, I will take the text of the errata (often edited to a smaller font size) and then print it out. Then I will trim the paper, cutting away any margins or unneccessary text. This new text is then taped into the book in such a way as to create a "flap" which will not cover the page in the book, but can be read, and lifted up from the page. I use clear scotch tape, and the direction of the flap prevents it from getting bent the wrong way when closing the book. I am, "taping the tape" to the book, if you will. It's easier to explain with a picture, but I hope you get the idea.
Anyway, those are the methods I've used, which just kind of evolved over the years that I have used and abused my books. Whenever possible, I prefer to keep all my hardcovers as pristine as possible, but traveling does wear down a book over time, and I can honestly say that I value my tabbed and errata'd books MUCH more than a brand new book that somebody else might own.