I'll echo what Andy says about concentration. I am an avid reader, and I thought it would be great to have all that time to read for the first month or so. Well, I had the time but not the interest or ability to concentrate. Even watching TV was more of a pacifier than anything else, as I seldom kept track of the plot lines. I finally just decided to roll with it and not worry about it. Somewhere about 4 or 5 weeks out, I came back to the surface and had some ability to concentrate. That's a good thing, as I went back to work part-time at about 6 weeks.
One thing I was surprised about was how I could do more things than I expected to be able to do. I just couldn't do them for very long. I could walk up and down the stairs in the house with no issue at all. I was afraid that I would have to group my errands, but after the first couple of weeks, I just did what I needed to do. The stairs probably helped me to get back to more normal activity.
One trap I almost fell into. . . when my wife and I were out for one of my first outdoor walks, I felt good for longer than I expected, so kept going. I almost went so far as to be too tired to get back! Be careful that you don't tire out on the way out and need a place to rest before going back.
There are a million tricks, but none of us need them all. You'll find your way, I"m sure. Just be patient with yourself, listen to your body and don't over-do it. It may feel great to do something today, but tomorrow you may pay for it. We've all been there.