Here is my method, you may need to go to the hydro shop to see exactly what i am talking about.
1) Germinating seeds, i do the paper towel method as drgreentm, except this is my exact method. I start by putting the seeds into a small box lined in i think its 150 grit sand paper, shake for 30 seconds to a minute. Now i make up a 50/50 to 70/30 mixture of RO water(0ppm) and hydrogen peroxide (just the normal stuff) soak my paper towel in the solution, i squeeze it but still leave a fair amount of moisture in the towel, not dripping, but close. now i fold it up into 1/4s to 1/8ths putting as many as 20-25 seeds in 1/8th of the paper towel, as near the center of the folding as possible. Then i put it in a baggie, add a little bit of water to the bottom, seal the baggie 90% then exhale into the baggie and immediately seal, keeping as much air (co2) as possible in the bag. I have a little box i have that i put it in (to keep it dark), then into the veg room where the temp is warm, this is important, soil temp is what plants use to determine when to germinate. I check for the first time 48 hours after putting in the baggie, usually have removed everything that is going to germinate by the 3rd day.
2) This is where you may need to go to the hydro store. I use exclusively Rapid Rooters by general hydroponics, i buy the tray with 50 plugs, if you dont use them all you can put them in a gallon bag. Now i buy a Mondi brand humidity dome (fits the rooter tray perfectly). This is where the misting 4x daily comes in. Keep 1/4 inch of water in the bottom, keep it warm all should go well. Cheap smaller version can be made with just a small tupperware bowl and a 2 liter bottle with the bottom cut off. 1st i would find a small tupperware that is about the size of the number of rapid rooters you need to use. Now get a 2 liter bottle and cut the bottom off, so it is a dome top that still has a cap. Make it so the tupperware is the base and the 2 liter(s) are the top(s). Keep 1/4 in of water in the bottom, mist the top 4x daily.
I must stress using rapid rooters for this process, i do not like any other product on the market, i have tried most except some of the brand new rooters. I DO NOT use any rockwool, as in my system it can and will drown the plant.