A Munchkin is the sort of person who, faced with a role-playing game, reads through the rulebooks over and over until he finds a way to combine three innocuous-seeming magical items into a cycle of infinite wish spells. Or who, in real life, composes a surprisingly effective diet out of drinking a quarter-cup of extra-light olive oil at least one hour before and after tasting anything else. Or combines liquid nitrogen and antifreeze and life-insurance policies into a ridiculously cheap method of defeating the invincible specter of unavoidable Death. Or figures out how to build the real-life version of the cycle of infinite wish spells.
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.
If you are new to a scientific topic, note that the first half of a paper often tends to summarize common knowledge within the field that is necessary to understand the conclusion. Often this is more readable/interesting than the rest of the paper, suggesting that you can spend more time reading scientific papers by skipping the denser and more original parts.
By the same principle, read the first chapter (approximately) of next term's textbook to get a good summary of what you need to learn now. You can continue this method all the way to research monographs, as long as you can tell what books are at the next level (and if there is a next level, but that's where the papers come in). Of course, you only get an overview, but sometimes that's all that you need.