Five years ago I was told I wold lose my sight, partly due to RAF service injuries. I gave my Apple Mac away and allowed myself to be driven crazy by Windows PCs even for simple contact purposes. Thanks to the superlative National Health Service I have my eyes 'repaired'. And the Mac back, with Yosemite updating. I plan to start on another book and would welcome ANY practical advice on using the Mac for simple (!!!) word processing a lot of pages. Any Do's (and in my case, especially DO NOTs) would be gratefully received.