Yeahright -Just occurred to me.
Moisturising shower / bath things don't help patches to stick.
For me non creamy things work much better.
What passes for my routine on patch change day is:
Remove old patch.
Rub baby oil onto sticky mark, leave for about 5 mins, rub off, gently with cotton wool.
Shower - I use simple shower gel on patch days
Cool down and dry thoroughly.
Apply new patch
Make sure you do gloat when your eldest get cramps or PMT