I replaced the door between my garage and back yard today.  It was much easier replacing that door compared to the door I had replaced between the house and the garage.  Probably because I had the experience of the first to make the second one more direct.  I don’t love door replacements as a whole, but I learned a few things.  The one thing I wanted to point out which may save some time and money: Many new doors have adjustable/replaceable weather stripping so that if you need to pull the weather stripping out of the crack they’re tucked into just about 1/16th of an inch – you can.  If you pull it out that much to create a better seal you’ll have better energy efficiency AND not have spent $15.00 or more on new weather stripping.  Pretty cool [or warm, depending on the season].