I swear that I read in the book, "Science of Bowling Maintenance 2000" that to combat sticky approaches, simply spread a little of sawdust around.  The theory is, that sawdust is organic, doesn't get into the pores of the approach, and sweeps up easily.  The only problem is it might drift onto the lane surface and mix with the oil.

Seeing that the center did not want to control the on-lane climate, NOBODY was able to slide normally.  (Very warm & humid)  I proceded to use the little bag of sawdust I carry around.  Unfortunately, center management caught me using it.  I argued my point to no avail, the center's mechanic disagreed with me as well.  They both felt that the sawdust would absorb into the pores and "make a mess" of things.  I was politely asked to leave as a result. (It's an independant house, NOT Brunswick or AMF.)

Now, I tried using the felt sliding heel on my Dexter's, and still produced no slide at all.  Anything rubber made it even worse.  Other than sliding on my socks, any ideas?

Well, for starters, the centre clearly needs to learn to clean their approaches properly. Technically, putting anything onto the approach or the sole of your shoe that alters the condition of the approaches is against the rules. However, I believe that if no-one is happy with the approaches, then it would be within the spirit of the rules if not the letter. I personally have never experienced atmosphere so humid that it affected sliding on the approach, does the proprietor not understand that a humidity this severe would adversely affect the lane material too?

Other than getting down on your hands an knees and wiping the approaches with a towel, there's not much I can suggest...
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Reporting from England