Hi, Arianna! I like to use chilled water, so I keep my distilled water in the fridge. Before I start, I also make an ice bath on one side of my sink so after my lye is dissolved I can rest my plastic pitcher in the ice bath and keep stirring to help bring the temp down quicker. That way I'm not waiting around all day for my lye solution to cool down.
Check to see if you scale has a tare feature. You put your container on the scale and then press the tare button to reset the scale to zero with your container still on it. That way, you're only measuring the ingredients and not the container. I have two scales - one I bought from Bramble Berry and another from LotionCrafter.
Like Bubbles says, your soaping temperature may depend on your ingredients, but I generally soap around 100-110 degrees. Sometimes you want to soap on the cooler end if you're using honey or milk or something like that that can cause the batch to heat up. Soaping too cool can cause a false trace, though, so be careful about that.
Have fun with your first batch!
