10 Old-School Tips and Tricks Everyone Should Know

For numbers 1–9: just double the number.
Example: 11 × 4 = 44

5. Waxing vs. Waning Moon

• Waning moon → Shaped like a “C.”

• Waxing moon → Shaped like a “D.”

6. I Before E Rule

“I before E, except after C; and in words that sound like ‘A’ — as in neighbor and weigh.”

7. Estimating Time Until Sunset

1. Hold your hand horizontally, fingers stacked, between the sun and horizon.

2. Each finger = about 15 minutes.

3. Count fingers to estimate remaining daylight.

8. Disinfecting the Old-Fashioned Way

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