As the old saying goes “Save for Rainy Days”. This practice is extremely important for the current economy as the diversity and evolution of the market is so radical now! We never know what is it going to be in the next 10 years. Compared to Fort Motors’ days in 1900s, 50 years later, we were still at the Industrial Age! It is different now. 3 years had passed and the dynamics of everything would have changed drastically by then. However, sadly, bad human nature and habits remained. Overspending and self indulgence are always evergreen within a human psyche. So beware!
I find one and two tough to abide to as you cant change job just because it is too far or girlfriend because she likes to go on date. However point 3 is achievable.