Fiesta Covered Casserole
While there are always potlucks year round, I find a significant increase in parties and potlucks in the summer. This covered casserole dish let's you bring your signature hot or cold. I haven't found one signature dish yet, so it might be baked beans I bring or a salad or something new that I want to try.
pyrex is function meets color for the kitchen - plus these vintage pyrex dishes with lids give you another good reason to stop using plastic tupperware.
These would look so perfect in my all-white kitchen. I think the SO would have something to say about me going out and spending a few hundred on the whole set, though...