Hi F.,
Welcome to MI! For your son, there are these great sales called Mom2mom sales (you can look it up online) and it is where moms come to sell their children's clothes (normally there is a sale every Sat, at schools, churches etc.) Those are great for finding inexpensive clothes for your son. For you, maybe just go to Kohl's b/c you can find such ridiculous good sales there. Thrift stores, hmm.. Not sure about those. Maybe you want to check out craigslist for some stuff. We recently sold some nice furniture for not that much on there (since we moved and it didn't fit our new house). Hope that helps a bit.
Also, I noticed your byline that you were looking for a legitimate work from home opportunity. I used to be a psychotherapist b.c. (before kids- my son is 4 yrs old and my daughter is 2 1/2 yrs old today). I have my own business with a company called Arbonne International. Have you heard of it? It's a wonderful 29 yr old Swiss Health and Wellness Company. They have fantastic products, I have been using them on my very sensitive skin for years (just before grad school). They are all natural, vegan, no perfume, mineral oil, no waxes/dyes etc.. If you are interested, you can always email me and I can give you my website to look at. Or, I can put something in the mail for you. It definitely is worth taking a look at. Since we live in Bloomfield HIlls, we are very close. You will enjoy Troy, I grew up there, lots of fun things to do! Have a great weekend. Take care. *C.