Of course, the answer depends on several factors — the occasion, your budget, and how close you are to the recipient. Jodi R.R. Smith, founder of Mannersmith Etiquette Consulting, in Boston, shares some general rules.

Father’s Day: $15 to $200. When it comes to dear old Dad, nothing is too sappy. The higher the sentimental value of the gift, the less you need to spend. If you’re going the practical route, remember that a $35 water pack for an avid biker is more meaningful than $250 in golf gear for the father who tees off once a year.

Weddings: $35 to $250. Give within your price range (21st-century wedding registries make this easy). If you’re writing a check to a close friend or relative, estimate what you spend on yourself for a nice night out, then multiply it by two or three. For more casual acquaintances, one night’s worth is fine. Don’t write a check for a work associate; buy a gift instead.

Graduations: $10 to $250. A $10 book is fine for the kid next door, but for your nephew, dig deeper.

Thank-Yous: $15 to $150. Match the gesture and remember: The more belated the arrival of your thank-you gift, the more you should spend.