* Send AROUND TOWN items to the...

* Send AROUND TOWN items to the Daily Pilot, 330 W. Bay St., Costa

Mesa, CA 92627; by e-mail to luis.pena@latimes.com; by fax to (949)

646-4170; or by calling (949) 574-4298. Include the time, date and

location of the event, as well as a contact phone number.

TODAY

Triangle Square Shopping Center will welcome trick-or-treaters

from 5:30 to 8 p.m. Information: (949) 722-1600, ext. 25.

A home remodeling and decorating show will be held from noon to 8

p.m. at the Orange County Fairgrounds, in buildings No. 10 and No. 12

and along the Parade of Products. The cost is $3 to $5.75.

Information: (818) 557-2950.

Three Costa Mesa churches and Vanguard University will host

Hullabaloo, a free carnival-style event, from 5 to 9 p.m. at the

Orange County Fairgrounds. Information: (949) 548-2600, ext.18.

SATURDAY

The UCI Arboretum will present “A Rainbow of Orchids” during its

annual Fall Orchid Festival from 10 a.m. to 3 p.m. at the UC Irvine

Arboretum. The cost $2. Information: (949) 824-5833.

A home remodeling and decorating show will be held from 10 a.m.

to 8 p.m. at the Orange County Fairgrounds, in buildings No. 10 and

No. 12 and along the Parade of Products. The cost is $3 to $5.75.

Information: (818) 557-2950.

Howl-Days will return to the Costa Mesa Bark Park from 10 a.m. to

3 p.m. at the southeast corner of TeWinkle Park, at Arlington Drive

and Newport Boulevard. There will be many unique doggy items and

items for humans. There will be a canine costume contest.

Information: (949) 733-4101.