Debra, one of these days maybe the tooth fairly will bring you a cordless Sawzall. You could do a billion things with it. Blades are pretty cheap. You can cut up those branches like nobodies business. You can stick the blade in the ground & cut up roots. You can trim bushes with it. You can do a whole lot of work with one. I'm thinking you could even make getting that grass out of areas easier by cutting the soil like cutting a pan of brownies & then you could more easily get the grass out.
https://www.homedepot.com/p/BL...
This one does not come with the battery so you would need to get that & the charger.