RtI and Intervention Ideas

Doing interventions and documenting them has been difficult for me to keep up with. I do realize how important it is to document, I just get caught up in different things and then forget! I do try to incorporate interventions for my students, however, I need new ones for the new grade level I'm teaching. I've compiled a list of good websites that have resources and activities for RtI. If you would like a copy, I can "share" it with you on Google Docs or email it to you. Do you guys have any ideas you can think of off the top of your head to improve fluency? Or Subtraction? Number Sense?