Wah
Keep the Cry Baby too. Have some diversity. A bag of tools.
Also I would consider picking up a good multipedal. A lot of them like RP250 Digitechs are selling dirt cheap and used to be expensive and have usb connectivity as well as reg. amp jacks. These will have expression pedals and sometimes a few different types of wah and some are quite good sounding and sometimes combined with distortion or overdrive, etc. They even have auto wah built in. A multipedal is a cool item if you get a good one. You can practically tell which ones are good ones just by looking at them - the good ones have a good vibe and obviously have some features that stand out clearly, like adjustability knobs instead of hidden computer menus. The more dials the better I think. These are almost universally more intuitive and easy to use right off the bat, instead of figuring out hidden menu settings and so forth. A multipedal can be very cool, and contain a noise gate, a very useful item when playing a noisy telecaster thru a high gain amp model or amp with an overdrive or distortion pedal, etc. A noise gate is awesome. Plus you can stack effects on some of the pedals and combine effects you want. Some are already combined and can be tweaked.
Then again, there is no substitute for individual pedals, in my opinion. I use just a reverb and an overdrive many times, straight into a good tube amp.
I hope some of these ideas help. Also, if you don't have one, a full sized humbucker guitar will be very rewarding, to compliment your single coil strat or other single coil guitar. I'm about to play my Agile AL 3100 cherry burst LP copy right now thru my Hot Rod Deluxe or Tweaker head. Very rewarding combinations to play that get and hold your attention and make you WANT to play and take lessons, etc.