I find it interesting to read recently that the CAA have issued a warning with regards to the use of Type II/III/IV fluids and the number of applications. The residues left over from the fluids can dry out and when re-hydrated swell up to form a thick paste. After a number of aplications the amounts of residue can cause flight control problems! Yet more things to think about on these cold mornings!
Still though, if in doubt DEICE the thing!
By the way, with regards to the use of AI. 737's are not permitted to use wing AI whilst on the ground or on the TO roll.