When you're in your twenties, you may not feel the need to think about what life will be like in your thirties or forties. But according to a few Quora users, now is the time to plan for the next few decades. 

Between all the things your future self will thank you for and the things your future self won't be able to do, there's a lot to accomplish before you turn 30. 

Here are five valuable pieces of advice from a discussion thread that answers the question, "What should one do in their 20's to avoid regrets in their 30's and 40's?"