For the level almost every one of you guys are at there is no need for two a days either. I used to do two a days but realized it wasn't benefiting me either. Your workout days and tempo/marathon pace runs are what matter. I ran the same marathon times on 85-90 as when I ran 50-55 per week. The key was run easy on the easy days and run your w/outs at the proper pace for your current level. Plenty of people race their w/outs and race no where near what their workouts are. Some people take themselves too seriously for the level they are at. I actually find it humorous to read their discussions.