Owen's high chair needed some good scrubbin'. My microwave oven needed some love too, so I decided to kill two birds with one stone.
Place 2 cups of water in a microwave-safe bowl. Add a 1/4 - 1/2 cup distilled white vinegar to it. Microwave for 2-3 mins (you want it to get hot). Let the bowl sit in the microwave for about a min. Dip a rag into the water mixture and wipe your oven clean! Food should come off really easily. Use that water to clean countertops, high chairs, dining chairs, tables, or anything else you fancy.