Well, you can arrange to take up all those easily impressable friends who've never been in anything smaller than a 737, for starters. Which will aid development of finely honed passenger briefing skills.
"See that, don't touch it."
"Oh, and that one too. Don't touch that."
"No, we're not going to crash. Engines hardly ever stop."
Erm. Then what? Well, definitely go get yourself a night rating pronto. Night flying is beautiful and gives you a whole new appreciation of this wondrous pursuit. And hey, you can do sunsets. That's a nice self contained rating to keep you occupied and extend your flying somewhat.
And then .... hmm, extend your cross countries. Get a channel check and fly to France. Get a VFR-over-the-top rating (do they have those in the UK?). Take a cheap holiday to North America, enjoy some cheap GA there.
All of which postpones the forthcoming crunch decisions on commercial training and all that goes with .....
But, for the time being, enjoy the simple things!