@kajero

1. What kind of bicycle(s) do you ride?
I mostly ride my road bike and my commuter bike. I haven't ridden my MTB in at least a year.

2. Do you do anything except ride during the riding season? (work, clean house, cook, take care of parents, etc.)
I work full-time, my house is a bit of a mess (but it would be whether or not I ride - I'm not much of a housekeeper). We eat out a lot. We're empty-nesters and our family lives out of state/country.

3. Do you ride in bad weather? What kind of weather will you not ride in? (i.e., severe downpour, high winds, temperate, etc.)
I'm somewhat of a fair weather rider. I don't do well in extreme heat. But an occasional drizzle is OK. I don't ride in the snow either.

4. Do you have apparel to ride in all kinds of weather?
Over the years I've built up a decent collection of gear for a wide range of temperatures and some precipitation.

5. Do you ride at night? (something I absolutely refuse to do)
Yes. I have lights and reflective gear. I generally ride at night only for commuting purposes.

6. Do you use clipless pedals? Does anyone only use plain pedals?
Clipless on my road bike (Speedplay Frogs), flat pedals on my commuter.

7. How many mph do you average? If I average between 11 mph and 12 mph do I have any hope of ever achieving a goal of 1000+ during a riding season?
I don't use clipless or straps - - - yet.

I don't have an annual mileage goal, but you can absolutely ride 1000+ miles a year at that speed. I checked my stats on Garmin Connect just now - in 2012, I rode 1197 miles @ 11.5 mph; this year so far I rode 1061 miles @ 13.3 mph (new wheel set). That's only the miles for which I used my Garmin, I'm sure there are more miles for commutes.

8. Do you ride mostly on trails or on roads?
Roads

9. Are the trails/roads or flat, hilly, steep hilly, or mixture?
Mixture

10. Do you do most of your riding alone, with someone else, or in groups?
Mostly with 1 or 2 others or with our bike club, some alone (commutes).

Any other things you can tell me would be greatly appreciated. I would like to increase my measly 500 miles to at least 1500 next year!
Just enjoy the ride and don't focus too much on the stats!