Staying true to the mission can be difficult. Especially when your Debbie-Downer sister keeps telling you that New Year's resolutions are meant to be broken. Ditch her and install the I Can Do It 2013 Calendar app ($5). For 365 days, it will send you chipper messages of wisdom and support. Which is more than you can say for your own blood relatives. Perhaps you can gift it to her as well, as a nudge in a better direction.