I love theme paper! I do two page layouts. I lean towards two sided paper. What I do is...
buy three sheets. I use the "printed" side next to "solid" side. Then cut from the third sheet to frame, accent or embellish the two layout pages. This ties the two pages together. I also like to cut out certain sections and put photos behind them as they would be framed. One more thing, don't forget to cut strips and use them for borders.
I buy alot of stripe paper to cut for borders. Cutting them perpendicular to lines using a scallop cutter is great!!!!