(CNN) — During the holiday season, it’s customary to give the people who help you year round a little extra show of appreciation, but figuring out just how much to give, can be confusing.

At year’s end, many consumers like to show appreciation for the people they do business with year-round, but just how much appreciation, can be confusing.

Kiplinger’s Personal Finance gathered suggested guidelines for holiday tipping.

For hairstylists, manicurists, barbers and the like, the recommended tip is the cost of one visit.

For a cleaning person who visits weekly, it’s usually the cost of one service.

Apartment dwellers should check with their building to see if there’s a collective fund distributed among staffers. If not, Kiplinger’s recommends a range of $25 to $100 for doormen, and $15 to $50 for handymen.

A dog walker can receive up to one week’s pay if they walk your pet five days a week or more. If it’s less frequent, one day’s pay.

It’s also good to be mindful that your giving falls within certain rules.

The U.S. Postal Service prohibits carriers from accepting cash gifts, or gifts with a value greater than $20.

Trash and recycling collectors can receive $10 to $30 each, but some cities and towns forbid workers from accepting gifts.

Remember, these are just suggestions.

For those who can’t afford cash, a small homemade gift or treat will also be appreciated, in the spirit of the season.