It's not quite spring, but the easiest pattern mixing I can think of is floral with either gingham or stripes. I'm glad that I went with this pumpkin tweed jacket instead of my cobblestone blazer. The more color the better I like it!
J. Crew Donegal tweed ecole jacket, Brooks Brothers shirt (thrifted), Ann Taylor skirt (thrifted), Ily Couture necklace, Target tights, Style & Co. shoes (Macy's)