Jupiter enters Cancer tonight...how will this impact the other Cardinal signs?
Aries: Jupiter will be squaring planets/angles in your sign. Expect more impatience and more risk taking. Anything you have in Aries will be shoved. It'll be a feel-good shove...you'll want to do (Aries is action-oriented) more, and do it immediately. Bad idea/good idea? Use some caution (especially if your actions are going to dominate others) and keep an eye out for accidents/carelessness (physical and emotional). But you can have fun with this one.
Libra: Jupiter will be squaring planets/angles in your sign. Libra wants balance, and ends up tipping in one direction or the other to find it. Jupiter will push you off-balance, possibly with a scenario that feels so good it's overwhelming. If you're tempted to go to extremes (for example, throwing yourself on someone's altar or pulling back in a huff of distaste) know that you're reacting to Jupiter's overabundance. Think about where the middle lies, and aim for that.
Capricorn: Jupiter will be opposing planets/angles in your sign. Visualize this: you're very thirsty (parched), and someone presents you with a pitcher of water. You're instructed to drink all of it without taking a breath. That's how this transit might feel. There's a flood of feeling coming your way, and while it will benefit you, it may also feel like you're drowning. Know this; you can put the pitcher down any time you want. There's no reason you have to chug it all at once. Go slow, but drink deeply. Don't be afraid of what's coming.