My paycheck is quite small due to the massive tax withholding I need to pay the taxes on my RSUs. I don't currently spend more than a fraction of my shares but I certainly use some of the proceeds to pay monthly expenses. I also sell company stock as soon as I get it and diversify(currently just buying T-Bills) because keeping all your eggs in one basket(i.e. keeping your wealth in the stock of the company that pays your salary) is bad risk management.