I also order groceries online (Giant via Peapod) and have them delivered to my house. This is especially good since I don't have a car, which makes carrying anything more than just a few items home really annoying. So I make one huge grocery order each month (there's an $8 delivery fee) and get all my staples and stuff that will keep. Then about once a week I stop by the store on my way home from work and get some fresh produce or bakery items that won't keep. This does mean I generally buy from one store and don't shop around. But it's really easy on the website to compare between brands of an item - they show the ingredients and nutritional info, they show the price, they also break it down into price per ounce or whatever so you can tell whether the larger item is cheaper than the small item or not. And they do run sales.

CSAs are also great. I'm living by myself and so don't have one now, but I've done it in the past. It can be more expensive, and you don't get to control what you receive, but it's exciting in its way.

Seriously. Getting food delivered = so much win. If you hate leaving the house for groceries do look into whether you can get them delivered.