Blame it on HGTV, or on Pinterest! Those DIY-ers make it all seem so easy. Longing for a new bathtub? Seasoned designers on TV would just rip out the old one and fit a new one in, finishing up the tile and power-drilling a new medicine cabinet above your sink, all within a 30-minute show. Ready to modernize your kitchen? Your favorite home improvement blogger would have it gleaming with trendy blush stainless-finish appliances and pristine marble countertops by the end of a blog post.