Okay, so you might not get that same 'sweet spot' if you were to set them up using this little guide, but there's no better way to maximize sound coverage in your home than spreading those speaker towers out as far as your cables can take you.
A few words of advice before proceeding:
Make Sure You Have the Right Speaker Cable: According to Audioholics, you're going to need a lower speaker gauge (AWG) when going longer distances. For example, at 10 feet, you can stay safe with 18 AWG, but if you're going closer towards 35 feet, 14 AWG might be a better idea.
Lower gauge cables are thicker in nature, but will allow for better sound quality and significantly less interference.
Consider Wire Control: No one likes watching a bunch of cords collect dust on the floor. Invest in some sweet floor running solutions and start policing that nonsense!
Add More Than Audio Equipment in Between: Okay, okay. We get it. You have a kick ass entertainment setup. But don't shove it all in our faces, we're here to be entertained, not heckled by a wall of technology devices.
Our favorite additions: a sofa, a bookshelf, and a bunch of artwork should do the trick.
Got a love for the sound spectrum spread? Let us know what you think!
(Images: Freshome)

Howard Butcher Bloc...
Thanks for the tips, but what a terrible looking apartment to use as an example.
Ooooh be nice D&C.
If you are have nice speakers than this is a waste because as you've said, no sweet spot.
I would set up the speakers for the sweet spot than set up a smaller, not as nice, set to go into your stereo, which you must have the option for dual outputs, because you bought a nice unit when you bought the nice speakers.
The second set could either be a satellite set somewhere else in the room, or an 'instead of' set to play when you want to go mono out of two speakers as above.
I actually just pinned this because of the apartment and not the speakers. I love the apartment!
Halfway decent speakers should never be that close to a wall. Sound radiates out from speakers in a "pie-wedge" type shape, so roughly half the sound from those is going to hit the wall and distort.
Obviously it's not feasible in every room, but a good rule of thumb is to position each speaker 1/4 to 1/3 of the wall width in from the wall. So if your wall is 18' wide, you'd want each speaker 4-6' from the side walls.