If you want to save money and the environment, think small. Each week, eco-expert Danny Seo offers tips that can make you happier, healthier and more eco-friendly.

Rid yard of mosquitoes

Mosquitoes bugging you? Stop them at their source: Any standing water in your yard can be a breeding ground for mosquitoes to lay eggs. Drill drainage holes on the bottom of trash cans and recycling bins. Check birdbaths and pet bowls, and overturn unused flowerpots. Mosquitoes need very little water to lay eggs.

Prevent exploding bottles

To keep your bottles of suntan lotion and aloe from exploding inside your suitcase, let FedEx lead the way. Use those FedEx Tyvek packs in which your shipments arrive. They're watertight and will keep any spills or messes inside the bag and not all over your clothes.

Cook s'mores with coals

Barbecuing tonight? Here's a quick, entertaining variation: Once the cooking is done, recycle the hot coals in the grill for dessert. Scoop the hot coals into fireproof bowls and bring out the marshmallows, graham crackers and chocolate bars. Instant s'mores.

Use bandanas as napkins

Here's an entertaining idea: Try bandanas instead of paper napkins when having guests over for a party. They're colorful, reusable, inexpensive and a fun way to dress up a table. You can find bandanas in most discount stores and Army/Navy surplus shops.

Make soap curls

If you're having guests over, offer them a fresh piece of soap every time they wash their hands. Just grab a bar of glycerin soap (it's clear) and run a vegetable peeler across the top to make soap curls. Place all the curls in a bowl; each curl is just enough for one hand washing.

Try reusable containers

If you are enjoying a day at the beach, consider using non-disposable containers for packing food. Chinese stacking tins keep sandwiches, pickles and cookies organized and separate from one another. These are easy to carry, with a click-in handle on top. Check out pearlriver.com for a selection of lunch boxes.

Water lawn at sundown

If you need to water the lawn or outdoor plants, do it at sundown. Watering plants at night is the most ecological method, since there is no sun to evaporate the water immediately. If you have automatic sprinklers, set the timer to water the lawn at night. Not only does this save water, but the plants and lawn will get a proper soaking, too, and will thrive.