I wanted to pass this on to all my English teacher and student friends out there. I put this together several years ago but I actually never had a chance to use it in class.
You will find a good explanation of the differences in usage between "too" and "enough." I heard my students say they loved their boyfriends too much and, while it could be true, I rather doubted it. On the last page, you will also find some basic exercises which can help a little I hope. In any case, if you find it useful, feel free to download it. Good luck to you.
Also here is another English lesson I posted: