Are you canning it or using it fresh?
I have a garden as well and usually have a surplus of tomatoes. I make a lot of salsa, but what I cannot use fresh I put the tomatoes in the freezer, whole. When I want to make salsa, I take however many tomatoes I need from the freezer and put them in a sink or bowl of hot water. As they thaw, the skins will slip right off and they'll be ready to use for salsa, stews, etc. I prefer this to canning them, as I much prefer salsa from fresh ingredients over canned.
5 medium tomatoes, fresh or previously frozen
1 large or 2 small cloves garlic
1/2 medium onion
1/2 bunch cilantro
1 tsp salt
1-2 jalapenos or serrano peppers
Put one tomato, half of the onion, garlic, salt, and peppers in the bowl of a food processor and pulse until it is very fine. Add remaining onion, cilantro, and tomatoes. Pulse until desired consistency. It's better after sitting for a few hours.
Makes about a quart.