What can I do on my own to get my bike ready for the riding season?

My bike was sitting over the winter season with Fuel and oil still in the motorcycle. I just recently purchased a motorcycle charger to charge my battery. Besides that, what else can I do on my own to get my bike ready for the riding season without going to a motorcycle shop? I believe in saving money, especially since the gas prices are high and I don’t want to ruin my bike. Is their things are have to go to a motorcycle shop to maintain?

Thanks again for your feedback its always appreciated,

Ray