Clean the windows, what a chore! So if in addition you make certain errors which make you waste time and which make the cleaning ineffective, it’s a shame! Here are the mistakes to avoid if you want an impeccable result!
Start from the outside instead of the inside
Cleaning the windows is not done in any order. If many know that you have to start from above and finish not the bottom, few people know that you have to start by cleaning the interior first, then the outside. The reason is simple. The exterior is much dirty with pollution and dust. If you start with the outer part, it will certainly remain traces, and you will not know if they are outside or inside. So start from the inside, then outside, so all the dirt is clearly visible.