This forces me to do some major research both online and in-stores. I have a few go-to's where I know I will always find cute things.
I am absolutely in love with Paul Frank's Small Paul line. They make the softest supima cotton onesies and little leggings that all coordinate. It's great basics with a twist. The images on the onesies aren't over the top, and I found the leggings are perfect enough for my baby who has really long legs!
If you are into organic clothing-which I have just recently become a huge fan of. You will love a line called Speesees. It's really unique, brightly colored onesies, jumpers, coats, you name it. I love the jumpers, they have a kangaroo pocket in the front and the legs are a bit flared at the bottom. They take basics and give them a fun, colorful twist!
a line that I am obsessed with is called Kicky Pants. Literally the softest clothing I have had my baby in. They use bamboo cotton that holds up amazing and feels so wonderful and cuddly. When our baby was really little these were the items I always went to because of their softness and great quality. You can't purchase directly from their site, but they do have a store locator on the website so that you can see who in your area carries the line.
If you want great quality clothes for your little guy to play in, I have had wonderful luck with Mini-Boden. A company out of the UK. They only sell online and through catalogs, so you won't see every other baby at playdate wearing the same outfit! Their toweling all-in-one is a must for summer. It's terry cloth with a hood and perfect to wrap your little guy up in once they are done in the pool! I have found that they do run long and run true to size. Order quick though, items go fast!
lastly, a must have for every baby boy (or girl) are Trumpette socks. Since boys do not have many options as far as accessories go, socks and shoes are what I have invested in. Trumpette makes a 6 pack of socks for $25 that look like little tennis shoes! They come in bright primary colors and go great with all your baby boy clothes. My other favorites are the camoflauge set. They are in pastel colors, which I found I used a lot when he was really little because we had so many light colored outfits for him. For girls they make a sock that looks like a Mary-Jane shoe or a Ballet Slipper. These are perfect for gift-giving as welll!
If you have any other great ideas, please post them!