Haven't you heard? Clipping coupons is back. We've said it before, we'll say it again: Always, always, always visit the online version of your destination's tourism office or convention and visitors bureau (a.k.a. CVB) before you leave home, and poke around for a discounts or coupons page. For instance, if you head to the San Diego CVB coupons page right now, you'll find that it's chock-a-block with money-saving discounts on everything from harbor cruises and meals to tickets for top local attractions such as LEGOLAND (why oh why must it be in all caps?) and hot-air balloon outfitters.