Adding a small cart as an extra work surface might be an effective alternative, although in most cases there's sufficient counter space in a galley to eliminate the need for this — unless it's a specialized addition such as a butcher block.
Whether you want inspiration for planning a galley kitchen remodel or are building a designer kitchen from scratch, there are 125,385 pictures from the best designers, decorators, and architects in the country.
Create a galley with an island. I've mentioned that enclosed galley kitchens may not be the most sociable setting for the cook. A popular adaptation, when space allows, is the inclusion of an island.
You can enhance the safety of your layout — particularly where the corridor is very narrow — by planning your kitchen with the sink and cooktop on the same run. Though less efficient than having those features opposite each other, this arrangement focuses your appliances in one area, so you won't have to turn to the opposing run with potentially dangerous items in your hands.