Good work on the gym! Do you currently have a specific target you're aiming for or are you just enjoying it for what it is? Whenever I start getting less interested with my guitar, I always find a new song that's slightly out of my skill range to learn. It gives you a reason to come back to it every day and doesn't feel like you're stuck playing the same old stuff. If you haven't already, check out the program 'Guitar Pro', it's a really useful learning tool.
I'll let you know when I start enjoying working out. I track 2 measurements, my waistline, and the ease with which I can load/unload my kayaks. Since I was never allowed to do ANYTHING at all athletic as a kid, I'm pretty out of shape compared to the general populace. If I tracked how fast (slow) my runs(alternating jogging/brisk walking) are, I'd probably just get discouraged and stop altogether. I work out so that I may enjoy higher quality of life, and personally I don't think I'd gain anything by quantifying my workout. RE: Guitar stuff, I just can't seem to find anything in the style I want, within the skill level I'm currently capable of. But mostly laziness this week.Do you currently have a specific target you're aiming for or are you just enjoying it for what it is?