Sketchooks do not have to be paper, they don't even have to be books.  They can be in whatever form you wish but the aim is the same..collect, collect , collect. 

Its really important to give weight to what you find interesting.  Textures, colours, typography, writings, images, etc etc... take them and squirrel them away somewhere for the future.     Now...I know this is not easy.  In an ideal world we would all have studios, overlooking the sea, high ceilings, white walls, storage galore, marvellous - but in the real world we can be squished into a corner of the house, children running amock, etc etc - but..the message is the same...keep and refer back and back again.

I have experimented in the past with my research keeping...my way now is to keep a joblot of those old school books in my studio (well tiny converted garage that I share with my husband and the rest of the household...but it works so mustn't grumble and all that!)  In these red books (lined so very much like school - keeps me young and playful) I keep everything - to do lists, money things, precious ideas that don't come around twice and in the sleeves I keep things torn out of magazines, collected out of a skip - whatever it is I keep it.  When I get back to my desk I transfer my treasures into scrapbooks whilst my vast pile of scribbles sit altogether on my daughters bookshelves..space is precious as I would imagine, dear Artist, you know all about already.