I've finished it! After months and months - and I lost track of how many grocery bags - I've finished the rug! It was a good project to do while watching movies on those cold winter nights. The crocheting was the fun part; but cutting the bags into strips was tedious! I'd get a pile of bags, cut only a couple at a time into strips, because I couldn't wait to get to the crocheting part. I wasn't too neat about cutting the strips - the first few I tried to be neat, but I liked the way the different widths of the strips looked; and I could cut more strips faster if I wasn't too careful. I used no tape or wire - just plastic grocery bags, and a little bit of Bernese Mountain dog fur, which was unintentional and unavoidable in my house!
Isn't it cool?! I love it! I'm going to use it in front of my kitchen sink! The rug is about 30" in diameter. It's not huge, but it took a lot more bags and a lot more time than I thought it would. It was a fun project, but I don't think I'll be doing it again, but... Now I'm saving plastic bread bags - same concept; different project!