Q: I bought one of those popular, ergonomic, stylish — and expensive! — Aeron chairs for my home office during the pandemic. About a year later, one day the seat went down but wouldn’t raise back up.

Q: How do we repair broken spindles on the backs of two teak chairs? McLean, Va. A: If similar pieces on two chairs broke just from general use, there could be something wrong with the chair design, ...