HAHAHA yet another reasonably good thread hiijacked by arseholes!
Right,
I don't fly a 737 but I fly another boeing. 21nm reduced to top bug speed (flap 1), 14 nm 180 knots (ish). I fly lots on LGW and they hold you 220 for ages, then 180 till about 10 miles. 160 to 4nm etc etc.
As empty cruise said - speed brake is your friend. I wouldn't do what Ryanir air man suggested (landing config at FL 100, that's insane!). Stick to SOP's with regards to flap and gear selections. If the speed brake doesn't work as planned, take gear early. Simple. If that doesn't work, ask for extra miles or an orbit. Aim for 160 by 10nm is a good point to aim for.
L Met