What type of Skin

1) Do you mean your also using a leather case as well??  Or does the rubberized case don"t fit very well??

2) You have to keep working the bubbles out, eventually they will dissipate.

Unless you get a leather case that fits the phone with your rubberized case on it, which is too much IMHO. you will still get dirt under the rubberized case being in your pocket.

Just put the phone in a leather case and be done with it, that is what i am doing now and it seems to protect the phone pretty well.

most screen protectors i saw on ebay were precut and pretty cheap, id say just give one a try. mine says insten and came with a little dust free cloth and card to smooth out bubbles.

I answered my own question. I bought my own case!

good call on doing it in the bathroom after a hot shower, i noticed i got tiny dust specks when i wasnt satisfied the first try and then re applied.

Work them out to the edge with something durable and flat. Fingernails also work nicely.

update, i bought an xtreme guard screen cover and put it on today and it really did go well and im pleased so far. it is the best ive bought for any phone.
as far as cases, i like the hard rubberized ones, i havent tried the gel cases though. for some reason the impression by itself seems too slick to open and close and i just had the feeling i was gonna drop it. i havent had any issues with the hard rubberized case except the fact i have to carry it in my pocket as its too thick for my leather carry case.