I presently own a 32 fl. oz. bottle of Windex Multi-Surface with Vinegar, which is great for cleaning windows without streaking. I bought it at Walmart for approximately $5.00. This size is considered the economy size, and I am able to get quite a bit of cleaning done with 32 ounces.
Windex does a lot more than just windows, and I have also used it for various other tasks around the house. I especially like it for cleaning the stovetop. My husband likes to clean the windshields of our cars with it. The vinegar helps to prevent streaks in glass, which can happen so easily if you do not use the right product.
Windex is made by S. C. Johnson & Son, Inc. I have used it on countertops and the microwave as well and have found it to be very useful at cleaning the glass panel in the microwave oven door. I have a big mirror in our double sink bathroom, and Windex is great for getting the spots off of the glass. It really does a good job, and the spray nozzle makes it easy to direct it where you want it to go.
It can be safely used on granite and marble surfaces, ceramics and stainless steel. I like buying a product that will do an efficient job on a number of different surfaces, which is less costly than having to buy a separate product for each type of surface that needs to be cleaned. It is also safe to use on factory tinted automobile windows, so Windex with Vinegar is definitely a handy product to have around the house.
Of course, the label does warn to keep out of the reach of children and pets. This is usually a good precaution with any cleaning product. You are also recommended to use Windex Dry Microfiber Cloths when cleaning with this product for best results, but I just use a regular cloth or even paper towels and have never had a problem.
I actually enjoy using Windex for cleaning my windows and other surfaces. It is very uplifting to do cleaning around the house and see a streak-free shine in the place of dust and dirt. There are various cleaning products on the market for windows and glass, but I have always relied on Windex and will continue to use it. If it works well for me, there is no reason to use anything else.