Age 31, science students graduated 3 years, annual income of 30 w, daily life aspects of clothing: science house, laboratory around the brothers and sisters are similar, basically like the "Big Bang Theory" in those, a few pieces of limited casual clothing, repeated wear. Unless worn out to the point of intolerable, basically do not buy new clothes. Have a few pieces of mid-range formal wear and only wear them for formal occasions like meetings and defenses. On average, less than 1k per month. (Later with the company gradually on track, this part of the expenses should increase) Food: school cafeteria, each meal is basically 10 yuan or less. When the experiment is busy and can not leave the takeaway, 30 yuan or less. Occasionally every month with brothers and sisters and company employees corruption. Rarely cook in their own apartment, too much trouble to brush pots and pans and wash dishes. Average monthly expenses of about 1k. Residence: the school's teachers' apartments, the rent is equivalent to about 40% of the price of the same location, directly deducted from the school's salary every month. Water and electricity is another charge, within 100 yuan per month. Buying a house has not been considered for the time being, Beijing's housing prices we all understand. Row: no car, no driver's license, the apartment and the laboratory are not far from each other, by walking or bicycle. Homebody, usually do not go out much, mainly by subway. Communication: two years ago, I bought a domestic mid-range cell phone, now the performance has lagged behind, ready to change the iPhone 6+. Monthly phone bill of 100 yuan. Not very interested in travel, but want to take my parents to see more, so occasionally consider getting a driver's license and buying a car to take my parents out for the holidays. Occasionally consider to start fitness. Adhered to the habit of bookkeeping for 4 years, short-term plan to save up to 100w in 2-3 years, if the company grows well should be realized in a shorter period of time. Plan to learn more about economy, management, finance and stocks. Buying a house also depends on personal development. Overall, I don't have much of a feeling that my income has increased, because I live a relatively simple life alone, and because of my thrifty habits, I just feel a little bit more comfortable when I spend money. The biggest difference may lie in the mentality, feel more independent, life is less bitter.