Buffy seems to have cards hidden all over her room. You may look in one place in her bedroom and take the cards you find there :D

These are the places you can look :
Under Buffy's bed - Carly looked here
Under the cushion on Buffy's chair - Lyndsay looked here
In Buffy's bedside table - Jennifer looked here
Behind Buffy's curtains - Sherri looked here
Under Buffy's pillows - Roan looked here
Behind the picture on Buffy's wall - Ashley looked here
Under Buffy's rug - Katie Marie looked here
Inside Buffy's picture frame - Stacey looked here
Under the stuffed animal on Buffy's bed - Tsuki looked here
Behind the hats on her wall - Jessica looked here
Underneath the carpet - Sam looked here
On the ceiling - Kyla looked here
Under Buffy's chair - Ashley looked here
Underneath Buffy's nightstand lamp - Shirphie looked here
Under Buffy's covers - Jenny James looked here
Inside Buffy's duvet cover - Smee looked here

Or you can suggest somewhere else that you would like to look

Once someone has looked somewhere, they will have taken the treasure from that place, so there's no point looking there again.

Where would you like to look?