72 HOURS

1. GOT A BETTER MOUSETRAP? Inventive individuals can attend a seminar

on how to become an independent inventor at 7:30 p.m. today at Orange

Coast College. The seminar costs $15 and will be held in the college’s

science lecture hall, 2701 Fairview Road, Costa Mesa. Information: (714)

540-2491.

2. INTERNET INSIDERS: Learn new and interesting cyber secrets at a

workshop titled “Tools & Tricks: Beginning Internet.” The workshop starts

at 10 a.m. Saturday at the Newport Beach Central Library, 1000 Avocado

Ave., Newport Beach. Information: (949) 717-3801.

3. SPEND A DAY ON THE BAY: Naturalists will give a free guided tour

of Upper Newport Bay at 9 a.m. Saturday at Shellmaker Island. Visitors

should meet at the Upper Newport Bay Ecological Reserve, 600 Shellmaker

Road, Newport Beach. Information: (949) 640-6746.