hey, anyone have some good tips for this??

i have no carpet in my house. I Frontlined my cats right before i went on vacation.
(two weeks ago) - that means i can't give them more for 2 weeks!

I covered my bed with two sheets so the cats could sleep on the bed
while i was gone and not soil the bedding. (ha)

I came home last night; pulled those sheets, threw them in the laundry and went to bed. Woke up with several new flea bites.

This morning, I combed all cats; found no fleas on anyone and only one cat even had evidence of fleas..

I went out and got Program for all of them (which doesn't kill fleas but makes the fleas essentially sterile) and bought some spray junk. Meanwhile, ALL the bedding is going through the washer and dryer again.

any suggestions?