If you are near a Nordstroms, Bloomingdales, Dillards, you can find outfits. Even boutique shops in your area. Macy's may have. Are you talking black tie? Review clothing from royal wedding
Test the Deborah Norville yarns at JoAnn's. I find them to be better than the pounds of love yarns. Much softer to the touch, better stitch definition, better quality IMHO.
Crocheting uses more yarn than knitting so be prepared. Also, invest in quality crochet hooks, ergonomic ones. Go to your various yarn shops and test drive different hooks to see which versions you like best. To learn more about hooks, Google "anatomy of a crochet hook" and read about the different types of hooks available. I use Clover Amour hooks because of the padded handles and with coupons from JoAnn's the price is right. But there are so many other versions of ergonomic hooks. Now if you want to go all out try the Furla crochet hooks. These are works of art.
Try allfreeknitting.com, PurlSoho.com and any simple hat knit flat can be knit in the round by eliminating 2 stitches used to seam the hat. Type into Google, preemie baby hats knit in the round to find more suggestions.
No fabric softeners. Babies have sensitive skin and may react to the chemicals. Use a gluten-free baby shampoo conditioner. These can be found in the baby section at Target. I have found that Shea Moisture baby products have no gluten, or any other chemicals that can hurt babies' delicate skin. I use these products all the time. If you can't find this one at Target, they do carry other similar products.
Try the anemone hat, for pay, on Ravelry. There is also the "cupcake" hat, for pay, on Ravelry by Stella Knits, a KP member. Many have made these hat. Ravelry will have oodles hats from which to choose; lots are free. Wishing your family strength at this difficult time.
If you have difficulty with 4 dpns, try the Addi Flexiflips. No dropping these needles. These Addis look like miniature cables because they are. Between the tips are very, very short flexible cables making knitting in the round so much easier. And, you only need 3 needles instead of 4 or 5.
Try Amazon for "roll up puzzle mats" rather than boards.
Check Ravelry. But using fingering yarn and smaller sized needles will also help. Short circulars, 2 circulars, dpns, magic loop, travelling loop may need to be used for making hats with a small number of stitches.
Try Addi FlexiFlips. Think mini circulars with very, very short flexible cable between needle tips and you're only using 3 needles. Not 4 or 5. No ladders. Easy to manipulate.
Yes, this is how you use up your stash of leftover yarns. Think of Mondrian. The back is one color, sleeves are each a different color, the same with the fronts and even the button bands. This is color block knitting and will look lovely.
Try Deborah Norville acrylic yarns from JoAnn's. It's great to use for anything and with coupons, the price per skein is very good. This is the only yarn I use for blankets, shawls and sweaters. If I'm doing something fancy then I step up and purchase "expensive" yarn from my local yarn shop.