I like Mean Dean's idea, a scrappy piece you wear to the pool, put on the cap, afterwards hit the shower and there you have it.

The only thing is you need to do full attachemnts back and forth between the two pieces. What is the base on the real piece? Are you a comb down or are you an exposed hairline kinda wearer?

Wearers with skin bases who use tape can swap out real easy.

Lastly there was a product a long time ago that I still use occasionally - you would have to do a search in the archives as to where to find it - Sabino Hair Solutions Moisture Block. Use it sparingly. I bouhgt 3 bottles of the stuff - enough to last 10 years.