When buying bread, look at the twist tie and it will tell you how old it is ... Each day has a different color, as follows: Monday = Blue, Tuesday = Green, Thursday = Red, Friday = White, Saturday = Yellow
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When doing a craft that uses short lengths of fine wire and you happen to run out, you can use the wire in the twist ties.
When buying produce, be sure to use the ties the store provides. These work great for tying things together, wires, food bags, etc. I can always find a use for them.