Chickiepoo,
Where in WA are you located? My sons grew up there (Anacortes). It is a great place to raise chidren, because until the recent ruling, the State laws favored parental rights over children's rights.
Homeschooling seems like it would be a big time committment, but it really isn't. If you sat down and thought about it, you would realize that you are probably already doing it with your son. Teaching him his numbers and alphabet are homeschooling, as is teaching him to follow directions, dress himself, and behave in a proper manner to family,

and strangers.
As your child gets older, if you keep him at home, you will just need to add the necessities (mathematics, grammar, history, science, etc.) to what you are already teaching him. And if he never goes to school, he will not have bad habits to un-learn.
McGraw-Hill has many different types of workbooks available to purchase for very resaonable prices so that you can have a way to see and track what he is learning and not have to reinvent the wheel as far as math problems and grammar lessons are concerned. They offer a lot of workbooks for the full range of school subjects. For the beginning years, my local Dollar Tree even has a selection of workbooks - how can you beat a text book for a dollar?
There are other companies that publish school books and there is a lot of

available through the different homeschool associations at the local, state and national levels.
On one occasion, my daughter had all of her homeschooling for the day (music and grammar) completed before the school day had begun for her

in public school. She felt that it was worth it to get up that early. While we try to stick to a set schedule, my being self-employed does interfere at times. That is why I built a catch-up day into the weekly schedule. If we were unable to get to something during the week, we use the next free day to study whatever it was we missed. A side benefit is that my daughter is reading a lot more than she was when she was in public school. She has written and oral reports due every month. And is starting to realize for herself that she is always learning. Whether it is by cooking, or a regular book type lesson, or just reading a story, or riding in the car talking about what is on the news that day. She is starting to recognize that it is all education.
Take your time with making the decision, because you have to do what is right for you and your family. But, if you think about it - you are probably already home schooling.
And it is not selfish to want some time away from your child(ren)! The best part of home schooling is I get to spend all day with my dd; the worst part of home schooling is I have to spend all day with my dd. When I need a break, she has

to visit, or my dh takes her off for some father/daughter time.