I'm definitely looking forward to perusing I bought a BlendTec a few months ago and used it a lot for the first couple of weeks, but I haven't lately. Gotta get back to it.
I'll give you one tip, you have to make your ingredients accessible if you really want to use your blender every day. For me, that means mason jars with easy screw-on lids for the dry ingredients, and ziploc bags of frozen ingredients for the rest. That way I can just grab whatever's in my fridge (water, whatever kind of non-dairy milk I have on-hand, or something like OJ), toss in some frozen bananas & frozen other fruits, throw in some different powders & seeds, and blend it all up. Oh, and I have frozen greens with good results (baby spinach, kale, etc.) so you can make ziploc mixes of your favorite smoothies or store greens long-term pretty easily (which was surprising to me).
If you're into protein powders, it's worth trying a few to get different flavors. I have a few neutral ones (like hemp), but the flavored ones can be really good depending on what you get (warning: there are a lot of NASTY flavors out there, so a chocolate protein powder from company #1 may be disgusting, but from #2 may be
amazing). If you're into veggie-based stuff, PlantFusion makes an excellent vanilla flavor and a cookies & cream flavor that works awesome in smoothies: ($$$ tho)
http://www.plantfusion.net/products/plantfusion
You can get really creative with sugary flavors to make them more appetizing (without actually using refined sugar) by using stuff like coconut sugar, honey, maple syrup, flavored protein powders, high-sugar juices like OJ or pineapple juice, etc. It's still sugar, but at least it's a little bit better on the health-o-meter for ya :awe: