TippyTops - a tip calculator for web-enabled phones


	TippyTops - a tip calculator for web-enabled phones

Lexica

7-17-2009 3:19 PM

81 views

tags:

restaurants, tipping, security, checksums

Lexica says:

The basic tip calculator is useful, but it's the checksum generator that makes this a winner.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/e595c5dc-d24f-40ed-802a-2ae90b3687f6/A57B4278-A53E-44CC-8AF7-6DBF78F462FF/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.tippytops.net/iphone/tip/" href="http://www.tippytops.net/iphone/tip/" style="font-size: 11px;">www.tippytops.net</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.tippytops.net/iphone/tip/"><table background="undefined" bgcolor=""><tr><TD><IMG alt="TippyTops iPhone Tip Calculator" src="http://www.tippytops.net/iphone/tip/imgs/tinyhat.png" />
				</TD></tr></table></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.tippytops.net/iphone/tip/"><H1>TippyTops</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.tippytops.net/iphone/tip/">A restaurant tip calculator</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.tippytops.net/iphone/tip/"><P><A name="tipexplanation">Most of the options are pretty self-explanatory.  You've used a tip calculator before, right?  I know, there's a thousand of them already for the iPhone.</A></p> <A name="tipexplanation">			</A><P><A name="tipexplanation">Make CHECKSUM is kinda cool.  It comes from something I read on BoingBoing.  You can use it to catch mistakes in your bill or tip fraud (when your waiter or waitress alters your tip after you've signed the receipt).  TippyTops will adjust your tip <B>up</B> (no sense in stiffing our servers because we're paranoid!) until the grand total creates a checksum.  Add up all the digits to the left of the decimal point and divide by ten.  The remainder is equal to the right-most digit.  So, if your grand total is $129.42, your bill checks out.  If the amount is miskeyed as $139.42, you can quickly see on your bank statement that 1 + 3 + 9 does not equal 2.  Don't forget to save your copy of the receipt, or at least take a picture of it.</A></P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/A57B4278-A53E-44CC-8AF7-6DBF78F462FF/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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