I found a solution that worked for me on a recent trip abroad - bodyweight exercises, in particular, the Convict Conditioning programme. I wrote up more details on my own blog: http://i.saac.me/post/struggle-to-maintain-exercise-habits-while-travelling/.

(Excuse the cross-promotion, but I think this programme will be genuinely useful for many people here).

Total Recall : Arnold Schwarzenegger---Arnold became world class in four different domains in his lifetime -- bodybuilding, acting, politics, business. His root methodology, beliefs, and refreshing honesty can provide a lot of guidance for the ambitious.Benjamin Franklin -- Walter Issacson---Amazing. Teaches you how tor relate with people and gives you perspective. Business, science, politics...not just world class but world historyRoosevelt - Edmun Morris ---One of the most inspiring people -- Very accurate, detailed biography that can give people zeal for hustle. Autobiographies are the perfect mix of personality and non-fiction for me. What are you favorites, what did you learn from them? 

Found this on Nicolas Taleb's Facebook page. It helps to understand his concept of "antifragility" - basically, fragile things are hurt by adverse conditions, robust things survive adverse conditions, and antifragile things get made stronger by adverse condiitons.

The classical, mostly Stoic, idea is that what matters isn't the random event itself, but how one responds to it, how one acts when hitting a snag. This was believed by scholars to make people "robust", that is immune from adversity --since we can control how we respond to events. But the point is, once again, misHarvardified: the classical man was vastly more antifragile than academic & library rats want him to be. He was not withdrawn from the world, but above it. His principal asset was in how much courage and fortitude he put in front of circumstances, how he could say "f*** you" to fate, how he defied reversals of fortune.

If that's the case, then he is not robust, as academics want him to be, but antifragile, as he wants as much disorder, adversity, and volatility to show off, to say "f*** you" to circumstances. If so, he is long volatility. The good news is that it takes a certain training. When a certain fellow failed his election bid for the Italian presidency (with an embarassingly low number of votes), as the results of the ballots were being announced, one of the senators was heard telling another: "now watch this man and learn from him how to lose".

It reminds me of this post: http://sebastianmarshall.com/give-me-strife-and-suffering-but-in-manageable-doses, which is why I'm putting it here.

It may seem obvious that you should try to lift up your friends, but are you LIVING it every day?

Are you sometimes being a crypto-crab because you can't stand the ego blow of your friends rising up in life?

Are you 100% always cheering your friends on to achieve more? Are you actively helping them find opportunities? Are you being ever-vigilant in pointing out their follies and mistakes? Would you never for a second entertain the thought of letting your friends stagnate at a comfortable level?

Selfishness is often a good motivator in life, so what is a selfish reason to help your friends?

Remember the old adage that you are the average of your 5 closest friends?

Should you work hard or should you work smart?I think the answer is this: be very, very smart when you select work. Go for Big Wins and things that will keep you upwind in the long term. If you can't do that right now, then spend time investigating options: not all who wander are lost.But when you do work, then work very, very hard.

I'm going to start working out and eating right, I just need to read all these websites on training & nutrition first.

I'm going to work on my coding project, I just need to close down all these tabs first.

I'm going to call my dad more, I just need less stress in my life first.

I'm going to approach more women, I just need to read more about inner game first.

I'm going to study for my exam, I just need to reorganize my desk first.

Was reading this article and got inspired to formulate my own version.

The 3 Constants, in no particular order of importance, are:

1. Hard Work. Doing quality work greases the wheels of the universe and makes good things happen, dreams come true, and plans reach fruition. On a deeper level, it also helps you sidestep the perils of identity-based thinking as opposed to becoming by doing. Do something, do not be something. Tell a story with action. Stack up those accompliments and merits by working for them.

2. Exercise. The mind and the body are inextricably connected. Want to look good, feel good, and live longer? If you can do only one thing in a day, make it exercise.

3. Enjoy every moment of life. Something I am struggling to do, but a good signpost to follow. The reason being that if you don't enjoy your life, you tend to start overanalyzing and over-planning in order to finally crack the puzzle and get to Happiness. Enjoy life, have some plans but don't overcomplicate, and work hard. Without enjoyment of the now, you will not be able to work with focus because you will want to go and rehaul your plans all the time. Classic procrastiplanning pattern.