Howcast - Learn how to choose a bowling ball from world record-holding bowler Byron Toth in this Howcast video.

Howcast - Learn the differences between gravity-fed and electronic force-fed paintball hoppers from paintball pro Mike "Pev" Peverill in this Howcast video.

Howcast - Learn how to tone your calves from personal trainer Erin Sharoni in this Howcast workout video.

Howcast - Learn how to do the single-leg calf raise for a female leg workout from personal trainer Erin Sharoni in this Howcast workout video.

Howcast - Learn how to do the single leg squat for a butt-toning workout from personal trainer Erin Sharoni in this Howcast workout video.

Howcast - Learn how to practice a knee attack using a wall from Mushin MMA's Sean Hinds in this muay Thai kickboxing training video from Howcast.

Howcast - Learn the proper posture when dancing the Argentine tango from tango instructors Diego Blanco and Ana Padron in this Howcast tango dance video.

Howcast - Don't throw away your old tennis balls. Recycle them using these 7 helpful tips.

Howcast - Learn what counts as an RBI and what doesn't so you can track your favorite player's progress throughout the season.

Howcast - Make memories and spread holiday cheer with these easy Christmas ornaments.

Howcast - Prep a baseball for play the way the pros do -- by getting it dirty.

Howcast - Let tennis pros Joe Perez and Kirk Moritz teach you how to hit the ball on the rise in this Howcast video.

Howcast - Learn how to make a fondant pig for a farmhouse theme cake from Angela Cuervo, winner of Food Network's Sweet Genius, in this Howcast video.

Howcast - Learn how to make a fondant alligator for a jungle theme cake from Angela Cuervo, winner of Food Network's Sweet Genius, in this Howcast video.

Howcast - Learn how to make your laundry eco-friendly in this Howcast video featuring Alegre of Green and Greener.

Howcast -Consider opportunities to get paid to recycle so you can go green and make a buck at the same time.

Howcast -Fancy-up your next picnic, beach party, or summertime event with this delicious drunken watermelon cocktail.

Howcast -Learn what to look for in a softball glove with the softball tips from coach Erin Goettlicher in this Howcast video.

Howcast -Learn the difference between the pools games 8 ball and 9 ball from pool trick shot champion Andy Segal in this Howcast video.

Howcast -Learn how to rack and break from pool trick shot champion Andy Segal in this Howcast video.

Howcast -Learn how to make a great opening shot from pool trick shot champion Andy Segal in this Howcast video.

Howcast -Learn how to make combination shots from pool trick shot champion Andy Segal in this Howcast video.

Howcast -Learn how to make the "Butterfly" shot from pool trick shot champion Andy Segal in this Howcast video.

Howcast -Learn how to make the "Machine Gun" shot from pool trick shot champion Andy Segal in this Howcast video.