[Fyron]

Make sure to build storage facilities to store any and all excess resources produced in the early game. It's much better to have, say, 210000 minerals stored than it is to have only 50000 when you start to build more than you can support. Store a lot more minerals than rads or organics. If you're and organic race, store about 1/3 to 1/2 as many organics as you do minerals. You don't need to store very many rads, because they aren't used very much.

Get Solar Panel IIIs quickly and place a few supply ships outfitted with them in each fleet. This extends their range significantly.

And about the 3 spaceyards per homeworld, make sure to get them built ASAP. Unless there are huge (or maybe large) planets of your atmosphere in your home system, get these space yards built in the first 6 turns. If their are huge worlds, build a colony ship or two and get them colonized ASAP. They are the first priority. And don't limit yourself to 3 space yards at each homeworld. When you reach a point where you consistently have a large surplus in your income, build more space yards. Try to minimize the budget surplus.