Other mistake: The configuration of the front side of the house does not match the configuration from the inside. The outside view looking at the house from the street indicates (1) there are no rooms to the right of the garage (when inside there are rooms on the side of the garage). Also when looking at house from street side, to the left of the front door the house comes forward. When inside, (at least in episode 13, season 3) the inside of the house does not extend forward towards the street.
Suggested correction: If you research "The Breaking Bad House" you will see that the house used was filmed both inside and out, so this error couldn't have happened.
The garage is shown to have an interior door. Walt comes through it when he is showing baby Holly the money hidden behind the insulation. However, the is no corresponding door inside the house. The interior house scenes, at least most of them, must be a set.
Wrong, the interior of the house is a set, and there are numerous inconsistencies that show this. One, being the location of the fireplace, and the other being an interior door to access the garage.
Stupidity: Why do they always have to go through that washing machine setup in the laundromat when they have a great functioning elevator to the lab?
Suggested correction: Why would Gus go through the process of hiding the lab entrance stairs behind a washing machine but leave access to a freight elevator wide open? The elevator would be just as hidden and probably locked up. Not to mention it would be slower to take than simply walking downstairs.