Despite my whinging, the solid polo actually doesn't not work with my style. My modus operandi tends to be insanely patterned thing + slightly less patterned thing + solid thing. Or alternatively incredibly patterned thing + several solid things that may or may not go with patterned thing.
If done correctly, this is actually a great way to build a wardrobe or work on refining your personal style. You can spend a little more on basics that fit well and will get a lot of wear, or special items that really capture your style. Look for jeans that fit well, an awesome pencil skirt, a fitted blouse, or a great structured jacket, or comfy tees in fun colors. Then you can add trendy or patterned things as you please for experimentation purposes. Thrift stores are a great place to find unusual items for little money. Since trends tend to cycle, you can also find items with a current feel for much less money. (Have I mentioned I love thrift stores? I feel like I should mention I looooooove thrift stores.) For example:
Is this coat weird and totally me? Yes! Is it something that is going to get a lot of wear? Probably not, honestly it's purple and has giant flowers and fake fur. But I got it for about $15 at a thrift store, so I won't feel so bad if my style keeps changing and it's not my thing in a year or two. (For now, I will wear it and rub my face on the collar constantly. So soft!)
If you want to work with what you have, consider the effect of color and pattern to make things look different and new. Pinstripes can look sophisticated with a solid blazer or funky with a fun floral. (I am awesome at alliteration, ha!) Animal print can look timeless as a scarf with a dark pencil skirt or young and fun with bright green boots and light jeans.