Originally Posted by OverTheHill

I've been riding on paved and unpaved rail trails, as well as metro park and state park roads and trails. My goal is to ride 20 miles a day. I am currently building up to that and rode 18 1/2 miles the other day.

That said, here is what I bought to accommodate my riding style:
Topeak Mini-Morph (which fits in my rear rack trunk)
Spare tube
Tire levers

I can repair the flat, and since my tires have a 25 lbs. of air range (40 to 65), should be able to judge filling it with air to get home. Once home, I can check my air with a tire pressure gauge and repair or replace the faulty tube. I went with the Topeak Morph series based on your replies. Thanks for your help.