I know that I should probably just use the music notation Moleskin and write out in music notation. However, sometimes I come up with chord and modal note combinations that I think sound cool, and want to jot them down quickly into a streaming tab. I have been using the music notation moleskin for this, and just use a ruler to add an extra line to the staff - turning it into a guitar tab staff. Any ideas? Actually, even an iOS or web application would be cool if available.
If you want to avoid the whole ruler thing, you can actually find tab sheets; like for instance in this site, where there are PDFs with empty guitar tabs for you to print for free:
There are many different layouts for you available just on that site:
But also, you can buy these kind of sheet at some music stores. I have seen in guitar shops, but I'm not sure if everyone sells them.