Garter Stitch is the most basic knitting fabric there is. If you knit every stitch on every row, you get a very bumpy fabric known as Garter Stitch. It's a great stitch because it's simple, rather firm and sturdy, and it brings texture to your projects without any work on your part.
The Garter Stitch scarf is a classic first project, but here also are some other ideas for knitting with Garter Stitch. They're all pretty easy but certainly not plain.
The basic Garter Stitch Scarf is the quintessential first knitting project, and with good reason. A scarf is made with rows that have few stitches, so you make progress pretty fast. It doesn't have to fit, and you don't really even have to keep exactly the same number of stitches on each row if you can't manage. It also gives you plenty of practice with the knit stitch. This scarf is worked in bulky yarn so it knits up quick -- a great confidence boost for a new knitter.
The Pocket Scarf isn't really any more involved of a project than the basic Garter Stitch Scarf, but it seems like a step up just because of the addition of pockets to the ends of the scarf (you make them by just folding up the ends to the depth of pocket you would like and sewing the side seams). Working Garter Stitch in a bumpy yarn like this one brings even more texture to the party.
Yet another look for basically the same Garter Stitch scarf is this fuzzy design, accomplished by combining a smooth cashmere blend yarn with a novelty yarn. Knitting with two yarns at the same time automatically makes your yarn bulkier, cutting your knitting time, and the combination of textures makes both the knitting and the finished project more interesting. You could go on forever knitting nothing but Garter Stitch scarves, just changing up the colors, textures and yarns each time. (But there are many, many other fun things to knit, so I don't recommend that!)
A skinny scarf is an even smaller project that's great to use when teaching someone to knit. I thought of this one in particular for teaching a teen or younger person to knit because the skinny style is stylish and can also be used as a belt. Each row on this project is just 10 stitches, so even the slowest knitter will be able to see her progress as she knits.
If you're ready to add a little basic shaping to your Garter Stitch projects, check out this Garter Stitch Tie. This tie is cast on with just three stitches, then and easy increase (knit in the front and back) is used to get the tie to the width it needs. Use any decrease you like to shape the back part of the tie.
Another easy way to make Garter Stitch more interesting is to throw in stripes, as in this super warm baby blanket. Just remember that, if you want the stripes to be solid with clean breaks between them, you need to always change colors on the same side of the work (the "wrong" side will then show choppy color changes).
Another great baby project that uses Garter Stitch is the Garter Stitch Bib. Bibs are great because they're basically knit washcloths with some kind of ties or closure to keep it on the child. In this case, I-cords are used, which still only require the knit stitch to make.