Weeds can be controlled by many practical approaches that don't involve chemicals. You can pull them by hand (tedious but healthful) or use one of many hand-held weeders on the market. A simple hoe works extremely well, especially when trying to weed out a larger area. Visit your local garden center or nursery to sample the latest gadgets and ask for recommendations.
If you want to spot weed--or, get rid of weeds in small areas such as cracks in the driveway--try flaming. Use a small propane torch to scorch the weeds. There is no need to completely burn the plant; burn only the tips of the leaves. This technique works best on small, young weeds.
One of the best and easiest ways to control weeds is to use a lot of mulch--preferably organic. Landscape fabrics work well too, since they cover the soil and do not allow weeds to get light or grow through to the surface, yet they allow the soil to breathe and receive water. Edging material separates borders from the lawn and planting areas and helps prevent weeds from creeping in.
If you're looking for a quick solution to weed control without actually killing the weeds, you might check your garden center for a weedeater. Here are some other tips:
Fertilize your lawn frequently, preferably with organic fertilizers. The best time to fertilize is from mid-April to mid-May.
Keep your grass cut at a longer length; the added height allows less sunlight to reach young growing weeds.
Avoid scalping--a popular springtime weed-reduction plan--since it harms the lawn. 
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