You have jewelweed and one of the goldenrods. Along with poison ivy and at least two other grasses.

Learn to look at plants. That can tell you alot about them. The tall one that you taught was stiltgrass has no segments, the leaves are wrong for a grass and come from a single stem. A grass is generally segmented and has joints. The joints may be less than an inch long or much longer. Go to library and do some research. Most of your plants in the pictures can be found in most books on common weeds. The question is if you like and keep them they are not weeds. If you don't like them they are weeds.