Congrats on your first Gi !
As Justin said you will "eventually have a full wardrobe of them."
Most Gi manufacturers, such as Iwata, say to: 1) wash in cold water, 2) do not use bleach, 3) do not use the dryer, 4) line-dry.
Personally, I use hot water and the dryer. I also use bleach about every 10 washings or so (white Gis, of course). I have some Gis that are 10+ years old and they still look good, so washing them in this way doesn't hurt them.
And most importantly, wash your Gi after each day of practice. No one likes to practice with someone wearing a stinky Gi...
Plus it's good hygiene, especially if you sweat a lot during practice.