Sliders, oh sliders!
Yes, I am talking about these inaccessible, bloated, unusable, stinky, annoying, animated parts of the web. They are so widespread nowadays and implemented everywhere, most of the time with zero consideration about the performance and bandwidth hit. Even we use them. On all our products, except the Readable, that much to say. But here’s why: clients simply demand them and if you aren’t providing any, you are leaving a great part of the money on the table, especially in the WP premium themes business we’re in.