The thing about high mileage weeks for "normal" people, i.e. those who make their livings doing something other than running, is that you want to make it fit into your life. For that reason you can't just say "do this on Monday, that on Tuesday, the other thing on Wednesday."
There are people who run 100 mpw on one run a day. I've done many of those. There was a stretch of time when I was substitute teaching in the day and driving a cab in the evenings. I had about three hours between jobs so I'd do all the runs in that stretch of time. I'd try to get long runs in on Saturdays and Sundays, say a 15 mile run on Saturday and an 18-20 on Sunday and usually I'd get a midweek 15-17 mile run in. That left me with about 12 miles to do on the other four days. Sometimes I'd do second runs on one of the weekend days. I'd add a 5-7 mile run to the Saturday 15 when I did this as a rule.
At other times, when I had a regular teaching job and was only doing that I'd get a main run of 10-15 miles in after work and a second run, usually 4-7 miles, at some other time. Sometimes I'd do it before school but I was never much of a morning person, so often I'd do that run shortly before bed, say at 8-9 pm. The weekends pretty much were the same as I described in the other example.
Then there was a stretch of time when I had the traditional 9-5 job with an hour for lunch and I'd do a couple of 6-8 mile runs most days with one happening at lunchtime and the other after work and again, the longer runs were there at the weekend though in that last example I think I kept to the two 6-8 mile runs one day and did a 15-20 mile run on the other weekend day.
A lot of the time that worked out to more than 100 mpw. It's not that hard to do but the key is figuring out how to make it work or you. The "magic" is in covering the distance itself rather than how it's arranged.
