FI and I would like to give holiday tips to the service providers who deliver our mail, pick up our trash, and other services we use on a somewhat regular basis. We didn't last year, because we'd just moved into our house, but I think it'd be a nice thing to do for them for the holidays. We never did before because we weren't homeowners, so we figured it was the responsibility of the property owner to do this.
What is an acceptable tip to give? Should it be monetary, or in the form of a gift card or something homemade (always looking to get rid of truffles)?
TIA!