You have the right mindset if it's not for $. Almost everything can be repurposed in some way!

In reality, these are just some prime flips here which stand out as me being a guru. While I have it down to an art, it's not always this great.

eBay is most efficient if you have a little workflow station and shipping supplies handy with a scale. Outside of the initial listing creation from your phone, the rest is simply waiting for your items to sell (unless you prefer auctions). I almost always do Buy It Now. Then again, I see you have at least one infant, so all logic on free time to do anything immediately goes out the window!