IME LP#9 works much better than the jelly domes. You have to be sure a liquid cleaner is safe for your cartridge however. A few manufacturers like ZYX recommend against them, fearing liquid may wick up their hollow cantilevers and harm the suspension.
For a DIY alternative that works just as well as LP#9, but with a different set of risk factors, search for my thread, "DIY Stylus Cleaner."
For a DIY alternative that works just as well as LP#9, but with a different set of risk factors, search for my thread, "DIY Stylus Cleaner."