This easy stitch is perfect for an afghan or blanket. It is just sets of 3 stitches, one single crochet and two doubles. Once you get into the hang of it, you can do it in your sleep. Use it for a baby blanket in a pretty pink or blue or for a regular afghan with bright colors.
Via Crochet Spot
How To Crochet A Granny Square
"The granny square is the easiest crochet square out there and should be one of the first things a beginner should learn. It sets the start for more intricate patterns and designs. You can crochet a few rows and stop to form classic granny squares which are joined together, or you can continue with the rounds of clusters to make your granny square as big as you like (and even turn it into a one-piece blanket). How do you crochet a granny square? A granny square is crocheted in the round and it's constructed with clusters of 3 double crochet stitches evenly spaced out to form a square shape. This granny square tutorial was designed for absolute beginners with step by step instructions and a video tutorial for those who learn better from watching how it's done. "
X-Stitch Square Motif
Scroll to the bottom of the free pattern page to watch the YouTube how-to tutorial video for learning this motif pattern - including a beginning X-stitch, regular X-stitch and increasing corner X-stitch! Also includes crochet charts! Learn the magical X-stitch a unique stitch pattern that boasts a pretty geometric pattern. Once you learn how to create this square, you could continue and make a gigantic afghan from just one! Or you could make the squares any size and join them as you go.
Synergy Square
"The Synergy Square uses interlocking crochet worked in the round to create a vibrant, interesting crochet motif. This square measures 9-11", depending on your yarn and gauge. The blog post includes written instructions, charts, and a complete video tutorial to walk you through this pattern stitch by stitch. Once you get the hang of the interlocking technique, you will fly through this pattern! You'll need two colors of yarn, a corresponding crochet hook, and two stitch markers (really, you want the stitch markers!)."
Hexi Askew Square
This 12 (30.5 cm) square starts with a hexagon. Crossed double crochet and popcorn stitches add texture. This square was designed for the sixth annual Moogly Crochet Along. Skills Used Basic crochet stitches: chain, double crochet, half double crochet, single crochet, slip stitch, treble (triple) crochet Crocheting in the round, increasing, crocheting into chain spaces, skipping stitches, crocheting into skipped stitches, crocheting in the back loop only Special stitches: cdc, cl, and popcorn (with video tutorials linked in the pattern) Skill Level Intermediate Finished Size Motif: 12 (30.5 cm) square. Materials Red Heart With Love yarn (100% acrylic, 7 oz/198 g/370 yd/338 m) - 1 skein each in 1502 Iced Aqua (CA), 1803 Blue Hawaii (CB), and 1441 Light Gray (CC), or approximately 55 yd (50.5 m) in CA and 32 yd (29 m) each in CB and CC in any medium weight yarn. US Size J-10/6 mm crochet hook, or size needed to obtain gauge. Yarn needle. Stitch markers (optional). Gauge Motif = 12 (30.5 cm) square in pattern. Exact gauge is not critical for this project
Supernova Square
Explore the shifting, layered textures of the Supernova Square. A starburst at the center sets this crochet afghan block in motion, radiating outwards into puffs, shells, ridges and more. With such varied textures, this blanket square works equally well with one color or many! The full square is 12 inches across. If you would like a smaller and more solid square, you can do that too, by working just the center portion without the shell stitch border!