As others have mentioned it is a doable commute if you're fit enough for it. I used to do Reading into Sunbury and back 3 days a week, around 80km round trip. The trick was I'd drive in Monday with a week's worth of clothes and then I didn't have to haul clothing every day. Friday I would drive in again and take home the laundry. Other reasons why it was possible included a decent sized locker to store clothes, co-workers who didn't mind my getting changed in the loo's (no showers back then), somewhat flexible work schedule, a place to charge lights and secure the bike, a desk job so I rested somewhat before riding home, and a huge free fry up at the works cafe. Plus as a back up I had a couple of work mates who lived close to me so I could get a lift if required (weather, broken bike, wimp out).