Very soon I will be heading off to work and as usual will be taking my notepad with me to keep in my pocket and in my free time like breaks and designated rest times I will be putting pen to paper and once again writing down the Kanji on a small notepad of what I have been learning and practising the ones I know and writing sentences.
I think writing it provides an immense benefit and enhances the learning process ten fold. It not only enhances the learning but adds to the level of skills you are capable of doing and helps the brain exercise by stimulating the learning parts of the brain into action.
I could not possibly think of learning Kanji without writing it as it reinforces all of them into your mind and the more I write it the less likely I am to forget Kanji. Any Kanji I can write I have never forgotten.
For me personally this has helped me a lot by actually writing them down after I have learnt them and writing them regularly and semi regularly to keep them fresh in my mind.