| There is a great place called Tomato ville (one word) on the web that details this at great length. Wherever you go, here are some of the most important bits of information. Use a seedling mix to start your seeds, not a soil mix which will be too heavy. Do not bury the seeds too deep! It is OK to have plastic over the soil to get the seeds sprouted but as soon as they sprout, remove the cover. Excess moisture will kill your seedlings faster than anything else. This time of year you are unlikely to have the sun intensity coming thru windows that will give you fat stocky seedlings. Supplement with grow lights. Keep the bulbs very low, just over the top of the seedlings for best results. I move my seedlings outside into a cold frame as soon as they have their first true set of leaves. Bottom water seedlings. Moisture on leaves increases disease. Airflow via a fan in the room or natural air currents helps prevent disease and make stockier stems. Don't fertilize until you have the first set of true leaves and then make it very very weak. If you get stretching due to low light, transplant into deeper containers and carefully bury the step up to just below the top set of leaves. A tall weak seedling is bad. Stocky strong seedlings is what you want. Get the plants into natural light as soon as feasible Plant a few extra for the times you, your pets or your kids kill things accidentally. If everything survives, give the extra plants away! Have fun! You are right, growing from seed is way more rewarding. Plus in doing so, you reduce the chances of bringing diseases into you yard as well as greatly expanding the variety of things you can grow. | 
