I strongly recommend that you spend the money on a good kit... it is going to save you money. The one in my signature is great and has enough reagents for daily testing until you get comfortable with testing and with your pool - then you can decrease the frequency to every other day or a couple of times a week. You can find the kit and other items at TFTestKits.net.
You also should visit Pool School, in the menu of this site, to learn about the ABCs of Pool Water Chemistry and what you’ll need to keep your pool clean and safe. At a minimum you will need liquid chlorine and CYA, also called Chlorine Stabilizer. You don’t want to add a bunch of stuff without having accurate test numbers.