Get a spray bottle, and spray that on your hairpiece, instead of putting your head under the shower.

Invest in some face scrubs, Debbie sells one on her site. It gets rid of all the oils on your head.

Use a hairdryer on medium head, with the teeth of a comb, push down on the piece to retack.

I get a solid 7 days, can go for 10 days with blue liner, but the clean up gets messy over the 7 day mark. But I use the bubble wrap, I am so suprised people don't make this a neccesity, bubble wrap is as important in your arsenal as lace release!