I'm a homeowner with a problematic yard. I have a problem with ants (as well as other critters), crab grass, and other broadleaf weeds. I went out to the local Home Depot and bought some ant killer, weed killer (with crabgrass), and some fertilizer. All 3 of these are the spray on variety that I can just hook up to my hose. My question is in what order should I apply these and how long should I wait between applications? My thinking is that I should kill all the critters (ants) first as they are doing the damage underneath that is allowing the weeds to take over. Then apply the week killer. Then apply the fertilizer. Suggestions? Also, after finding this site this morning and reading, I'm getting the sense that I'm your everyday homeowner that goes to Home Depot to purchase my products, but there are better options (I keep reading about Drive). Where should I be shopping for my products. Thanks for all your help!