Worsted weight yarn
Main color: Black
Contrast color: Green
Other colors: scraps
Button of your choice (I used one that came in a pack of 6 that I had left over and matched)
Crochet hook size K
Note: I saw a pattern I want to make but I changed my mine half way through the first half of the pattern. Here is the link http://www.redheart.com/free-patterns/trendy-tote-bag.
I started the pattern as written but then I knew I did not have enough green to make the tote and thought I would make shoulder bag instead. I had my gauge a little tighter so I added a few more chains to start than it called for so I ended up with an 8 inch by 11 1/2 inch bag. My strap is 3 inches wide. I trimmed it in just a single strand of yarn around the strap as it was easier to work with.
The rest of the bag is worked using 2 strands of worsted weight or number 4 yarn. One color, black, is worked all the way through while I changed the color for the bag by dropping the green and adding another strand of yarn as I went. I used up some very small balls of yarn for this part.
I added a flap to my bag so that it has to be opened to take things out. I crocheted one strap so I can wear it across my chest.
When I got the first half of the first part of the pattern crocheted I then folded my piece and stitch it on the one side and around the corner and across the bottom. I then wove in the end all the way to the other side and back as the first row is a double crochet in very stitch row. This also brought the color I used at the top to the bottom of the bag. I then used the two colors I started with for the straps and the flap. I single crocheted them to make for less stretch in the bag. The bag does not need lining as it is very tight and I will not be putting small items that will poke through into it. I worked in my ends as I went along so I did not have to weave in any but at the part I mentioned.
If you like this bag and do not crochet please let me know in the comments as to your color choice. I will be happy to crochet you one.