You're entitled to a dependent child-care credit of up to $3,000 as well if you hire someone to watch over mom or dad while you work. Or you might be able to add such an expense to other health costs you pay to top the 7.5% adjusted gross income hurdle to write off medical expenses. For single people, there's the added benefit of becoming a "head of household," possibly lowering your tax bracket. Remember, your parent must earn less than $3,100 in taxable gross income. For details, go to irs.gov and check out Publication 501. Color will reign in the Berkshire mountains of western Massachusetts this fall. In addition to the usual reds, oranges, and golds of the changing leaves, you can see an exhibit at the Berkshire Museum in Pittsfield featuring brilliantly colored illuminated works by 20 contemporary U.S. artists. In their creations, some of which are interactive, the artists integrate light through the use of shadows, illusions, glowing jewels, candlelight conjuring up spirits, twilight, and other luminous effects. Presence of Light will be on view through Oct. 31 (berkshiremuseum.org). It's a pen. No, it's a highlighter. Well, it's actually both. The new Sheaffer Prelude MPI conveniently converts from one to the other when you twist the barrel. Handy for marking up documents, it comes in three styles with 22K gold plate trim, for $45, $60, and $70, depending on the finish. A new ballpoint pen cartridge costs $2.25, and a three-pack of highlighter refills goes for $7.50 (sheaffer.com).