Usually aesthetics go out the window because I'm not particularly judgmental about myself. Me, I'll eat anything. I do stay away from processed food for the most part, but I won't hesitate to use canned stock if I don't have any homemade in the freezer. I won't hesitate to use Mrs. Dash.

Flavor combinations that would horrify most normal people aren't a big deal to me. As long as it satisfies me, that's my mantra.
Now, if it were someone else, then I need to be a bit discerning.
Motivation: not difficult. I can get motivated just
thinking about food. I look to other posts/blogs/sources for inspiration. Lately, I've been trying to be more observant and to notice more things around me. This has practical applications outside the realm of cooking; for instance, it lends itself quite well in creative writing. (As an aside, I'm getting back into serious poetry and fiction writing as evidenced on my blog.)
There's a nice vegetable and imported food store near the 86th St/Lex subway stop. Last night, on a whim -- and also because I was thinking about dinner, I decided to stop by and see what might be good for a future meal. I hadn't visited for a month or so as I've been distracted by other projects.
There was a special of oyster mushrooms for $5.99/lb. Picked up a couple, along with ginger root and a couple of heads of broccoli and a container of kalamata olives.
Those mushrooms will combine with the remaining crimini for omelettes this weekend. Stir-fried broccoli and zucchini with ginger and oyster sauce. I'll roast some brussel sprouts and use them in a Sicilian style puttanesca with some rigatoni over the weekend.
You're probably thinking, does he eat meat? Oh yes, of course. Its just that its not as sexy as vegetables can be. If anything, that's where most of my inspiration comes from during this time of year -- from starches and veggies. Oftentimes, a piece of broiled chicken breast or maybe some poached salmon will suffice. Once fall and winter set in, then I start to think about braises, stews and more substantial fare.
I hope that was helpful.