Before you get started with the swabbing, turn your keyboard over to get all the dust and crumbs out. If you have a keyboard with deep keys, you may consider using a compressed air cleaner. However, it isn't absolutely necessary. You have a perfectly free option hiding in your bathroom: your hairdryer. Set your hairdryer to a low heat setting, hold it at least 6 inches away from the keys, and blow over in a slow motion to get any tough dirt out.The Family Handyman suggests mixing a solution of half water and half isopropyl alcohol for your cleaning solution. Isopropyl alcohol is a common first aid solution and usually costs less than a dollar at the drug store. Mix the solution well and dip your cotton swab in it. Then carefully wipe down the keyboard and use a paper towel to dry off any excess solution so it doesn't get into the electronics between the keys.
What are some simple and affordable home methods you have found to clean your peripherals?