I have several pepper, basil and tomato plants started inside. I have "Gypsy" pepper, which is sweet and matures to yellow, and miniature red bell peppers. I also started "Honey-Bunch Grape", "Oregon Spring", and "Roma VF" tomatoes.
I double-planted my gypsy peppers because they were being so slow that I almost gave up on the first set. I decided to put them in a warmer spot. I have a kitchen cupboard that has an old heat vent underneath. I used to use it to rise bread, but now I've found that it's a good, warm place to put basil and pepper seeds to germinate. I plant the seeds in my cell trays as usual, and keep them in the warm cupboard until I spot any growth. Then I move them into light. It works and now I have at least 9 gypsy pepper starts. It's my version of greenhouse gardening, without all the fancy supplies.
The tomatoes did fine germinating in the basement along a large south-facing window. Once it starts warming up into the mid-60's outside, I will probably start hardening off the tomatoes, peppers, and basil by putting them outside on dry days, and bringing them back in at night.