a few different qs for the older modelers?

ok so i see that a lot of you'll use the pledge future for models, but can you use other materials? what kind? is there different results or are they the same? i also saw the topic about using windex for cleaning and other topics, i remember seeing that someone said it could harm the brush after time because of the ammonia. i was at walmart today trying to gather materials to get started, because i dont want to get started on something and have to stop 3 mins later, and i noticed that there were a few different types of glass cleaner. they had the original windex, windex without ammonia, and windex with something else in it (cant remember). so out of those which would be the best. i went ahead and bought the original because they had it 2 for 1 and i didnt want to pass on the deal. i just thought i would bring these qs up for the newer modelers like myself. all responses are appreciated. thank you