7. Use mason jars as glassware. Hey, you're outside, most likely in flip-flops, and your hair is probably frizzing out from the humidity. Who cares what you're drinking out of? Mason jars are ideal for outdoor entertaining, especially when guests are gonna need gallons of cold beverages (in my case, strawberry lemonade) to avoid heat stroke. It's wise to contain the mason jars on serving trays since they'll sweat like crazy in the sun.