Have a dry towel on hand to mop up any spilled cleaning solution. Be really careful to avoid liquid pooling around your keyboard.
Or, try making a cleaning solution yourself, using equal parts water and rubbing alcohol. Apple suggests Lysol Wipes or Clorox Kitchen Disinfecting Wipes. Be gentle with the keys by pressing lightly, although you can scrub harder on dirtier sections if you're careful. It is not uncommon for a small amount of grime to accumulate on the surface of your keyboard, so take your time as you wipe the surface and apply extra attention to food spills or grimy corners. This will also get rid of unseen germs and bacteria. Cleaning with disinfectant gets rid of any spills, stains, and especially dirty crevices. This deep-cleaning action can be the most rewarding part of cleaning your laptop keyboard. Use disinfectant wipes to clean the surface of your keyboard.