When stored under your sink, these rolls of plastic bags inevitably always end up unrolling and getting tangled in your cleaners. Use a paper towel roller to dispense them in an organised and streamlined fashion. See more at Simply Organized.
Unless you designed your kitchen from scratch, with a custom layout and cabinets, it's probably not perfect for your needs. But new cabinets can quickly eat up a small remodeling budget, and re-designing the kitchen isn't usually an option if you rent.