I wear gloves. I also do other stuff outdoors enough that tan lines aren't a problem.

I wear fingerless gloves in the summer and full finger the rest of the year. Canari makes a glove for like $25 that has good gel pads. I've bought better gloves for more money, but also several not nearly as good.. for more money.

Also you shouldn't be gripping the bar very tight, or leaning a lot of weight on your hands. If you can support your torso with your core you'll have a lot less hand fatigue. This will improve on its own as you ride, and you can do some core exercises to help it further.