Mason jars can be used as mini blender jars.the thread on the bottom of the blender is the same as a mason jar, simply remove the blade assembly from your blender jar and attach it to a mason jar for small recipes, quick smoothies, baby food, etc.
Parmesan Lids Fit On Canning Jars! - parmesan cheese container lids will fit on mason jars! How about keeping baking soda by the sink for a mildly abrasive cleanser. Or flour near where you kneed your bread - just sprinkle on the counter.
Rather than using a cardboard salt container, fill a Mason jar with salt instead. Cut off the lid of the original salt container, then screw it on top of your jar for easy dispensing. Get the tutorial at The Pistachio Project.