Modern wigs have adjustable straps inside for a good fit. Cartwheels are even possible. Parting your hair is an option. Wigs can be hot in the summertime, but they do conserve body heat in the colder months . Wigs can come with gray hairs.
Synthetic wigs are tons easier to deal with.
I used to wash mine in the sink and hang it up like pantyhose. Having a spare is a good idea, especially when your other wig is hanging up with the pantyhose. Never use curling irons on synthetic wigs, they'll melt. Take time to experiment with your wig when you first get it. I had the hardest time finding my natural hairline once all my hair fell out because I couldn't tell where it was.