For anyone using "RTK" I recommend using http://kanji.koohii.com/ http://kanji.koohii.com/ . I also recommend that you actually write the kanji out (on paper, o

For anyone using "RTK" I recommend using http://kanji.koohii.com/ http://kanji.koohii.com/ . I also recommend that you actually write the kanji out (on paper, or even just tracing it out with your finger in the air) when reviewing, and only consider a kanji remembered when you can render it properly, with the correct stroke order.