I keep my notes on Evernote... a computer and/or web based "notebook". Just think of it as a 3 ring binder...but electronic. It's easy to add pictures and text, links to websites and copy pics or text from a website. I take a picture of my bait with my phone and then email it to my Evernote account and then make notes on temperature, colors used, etc.
https://evernote.com/I also keep notes such as furnace filter size, fishing log for the year, the type of detergent I'm supposed to buy (according to my wife!), frequent flyer numbers, recipes etc. etc. I call it "brains in my pocket" !
You can access your notebook on your computer, internet or smartphone...or print out the pages you want and store them the old fashioned way!
Plus...it's free!