Not a permanent solution to accumulating skill bloat, but if the skills have the same basic effect as has been said (e.g. damage+) you can just macro them together and button mash it as soon as it's up. Several skills discussed such as Hawkseye/B4B or Rouse/Spur have CDs that line up almost perfectly so you can just roll them up into one hotkey for the same "consolidated" effect. It obviously cannot be a permanent solution if more skills are added down the line but it definitely does take the heat off of the keybind overload for me.