Howcast - Learn about the offset function in this Excel Howcast tutorial with expert Shir Moscovitz.

Howcast - Learn about data vs. format in this Howcast Excel tutorial with expert Shir Moscovitz.

Howcast - Learn about count functions in this Howcast Excel tutorial with expert Shir Moscovitz.

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Howcast - Learn about taxable income in this Howcast finance video with expert Gregory McGraime.

Howcast - Learn texting etiquette in this teen dating advice video from Howcast with expert Shallon Lester.

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Howcast - Learn how to answer the salary question from career expert Nicole Williams in this Howcast video.

Howcast - Learn how to make a good first impression from career expert Nicole Williams in this Howcast video.

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Howcast - Learn seven ways to make your drill sergeant happy in this US army basic training video from Howcast with Sergeant Michael Volkin.

Howcast - Learn what a router is from computer expert Yoav Erez in this Howcast video about wireless network technology.

Howcast - Learn what computer networking is from computer expert Yoav Erez in this Howcast video about wireless network technology.

Howcast - Learn what an IP address is from computer expert Yoav Erez in this Howcast video about wireless network technology.

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Howcast - Learn first date do's and don'ts from dating coach Rachel DeAlto in this dating tips for guys video from Howcast. Thumbnail: arhadetruit/Flickr

Howcast - Learn how to ask a girl out from dating coach Rachel DeAlto in this dating tips for guys video from Howcast. Thumbnail: Roe Utena/Flickr

Howcast - Learn nine weight training tips from personal trainer Erin Sharoni in this Howcast workout video.

Howcast - Learn how to play the nine-stroke roll from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn about time signatures from drum expert Jason Gianni in this Howcast video.

Howcast - Learn how to play triplets from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn how to play "Es" and "As" from drum teacher Jason Gianni in this Howcast drum video.