To answer your question, you only get taxed on the money you make from the money in a taxable account. So if you put $10,000 in a taxable account and it pays you $200 worth of dividends and grows to be worth $11,000, you would just be taxed on the $200 worth of dividends (when you receive them) and the $1,000 of capital gains (when you sell the investment). You were already taxed on the $10,000 so you wouldn’t be taxed again. Make sense?
Of course they look at me like I’m crazy when I suggest they cut a $100+ a month cable bill. Or switch to a cheap cell phone provider like metropcs. Or drive a car that is 3 years old. Or only fill up their tank from the cheapest place according to GasBuddy. Or get $25/month budget car insurance from Insurance Panda. Or cook their own food instead of spending a hundred a week on restaurant food (or far more if they like the bar).
I want to be solidly in the middle – i.e. comfort zone, in the next 5 years. Right now I could hit the frugal FI button likely in the next year or so, but would not be happy there. I like the idea of the continuum. My in-laws are shooting for blockbuster FI, but they both own tech businesses that are doing well…so their reality differs slightly from mine.