Their big idea? Use foam mattress toppers. As in, cheap egg crate toppers. GENIUS! So, instead of paying between $10-12 for less than a yard of foam, you can have an entire mattress sized foam piece for roughly $7 (walmart). Why, oh WHY did I not think of this years ago?!
If you head over to the All Things Thrifty blog you'll also see other works of genius like:
Using cheap rubber welcome mats to replace the not-so-kid-friendly glass doors on her entertainment center. Don't believe me? How cute is this:
What's your most recent aha! moment?