New technology: "Warm Cookie Radar"

Summer's in full swing—and to survive those backyard barbecues and camping trips, you're probably slathering up with sunscreen and bug spray. But here's a quick tip: Don't use a product that combines the two. Sure, it seems like a great time-saving idea, a product that has both sunscreen and DEET (or another bug repellant, like IR3535) in it. But the Centers for Disease Control and Prevention (CDC) recommends avoiding just this type of commodity. Because DEET and sunscreen products have different instructions for proper (and safe) use, you risk overapplying DEET when using a combination product. For instance, you should reapply sunscreen every two hours, regardless of what you're up to (that's just good practice for avoiding sunburn). But DEET has a longer wear time, sometimes up to eight hours. So in protecting yourself from sunburn, you might be overexposing yourself to DEET. The solution? Joseph Conlon, of the American Mosquito Control Association (an organization of mosquito-control professionals), says to apply your chosen sunscreen first, and then the DEET or bug-repellant product. That way, you can continue to put on sunscreen over the bug spray when you need to. We're not promising you'll make it through the rest of summer sunburn- and bug bite- free—but that's all part of the fun, right?

We've often praised TripIt, an itinerary-builder that allows you to easily forward your travel confirmation e-mails to plans@tripit.com and compiles that research into a single, shareable itinerary, complete with weather forecasts, maps, and restaurant recommendations. Starting tomorrow (Wednesday), TripIt will debut its latest creation, TripIt Pro, a membership-based service that offers extra tools on top of its free online organizer. Company co-founder Scott Hintz walked me through some of the new features. 1. Mobile alerts: the website will automatically send alerts to your cell phone for all the airlines on your itineraries. This will come in handy if you fly on multiple carriers and forget to register for text-message alerts with the individual airlines. 2. Alternate flights: If your flight is delayed or canceled, the text-message alert will also include a link to other airlines with flights that are leaving around the same time as your original departure. (You'll need a web-enabled phone or browser to access the link.) TripIt Pro only shows flights with available seats and also lists a rebooking phone number. Though you'll still have to negotiate with the airline agent for the actual rebooking, Hintz says, "Equipping you with the info is powerful. You can say, 'I want to get that Delta flight that's leaving in 30 minutes' instead of asking, 'When's the next flight out?'" 3. Point tracking: your TripIt Pro account shows all of your recent activity for every air/hotel awards program, as well as all the expiration dates. So now you can have Hyatt and United Airlines points showing up on the same screen. You can try the service free for the first 30 days. If you register by July 31, you'll become a lifetime charter member for $49 per year. Otherwise the service will cost $99 per year. EARLIER Why we like TripIt

Golden Globe nominated actress Scarlett Johansson told readers of The Daily Beast today:I love the Road Food website and make sure to see if I'll be driving through a town offering up "The Best…" anything that Road Food recommends. I was surprised to see my close proximity to one of the best turkey clubs I've ever had!We agree! And we encourage you to check them out if you're taking any long drives soon… Here's our recent Q&A; with the reviewers who run the site: They ate at 700 diners, shacks, and joints to find the best

Kayak has introduced a monthly calendar that lists the starting rates for hotels by the day of the month. Working along the same lines as its Buzz flight calendar, the hotel chart lets you see the best available price based on data pulled from sites like Expedia, Orbitz, Travelocity, Priceline, Hotels.com, and the hotels' own websites. Although the flight calendar lists the starting rate on any airline, the hotel calendar only displays the prices for one property at a time. The idea is that people tend to care a fair amount about which hotel they stay in, but when they're looking for a flight, the cheapest one is usually the one they're going to go with.Kayak has also tweaked other parts of its website. A Toolbox section on the upper left now lets you share results with others. A small heart icon next to each result lets you tag them as favorites, making them extra prominent for recipients. The e-mailed link stays live for just 30 minutes, though Kayak's spokeswoman tells me that time limit may be extended. The collaboration tool is helpful when you're trying to coordinate flight schedules with friends, for instance. In my meeting with Kayak last week, I also learned that the site plans to roll out an instant-messaging function, so you will soon be able to share your search results over IM as well.