Sometimes the shortest ride is the best. That's why I go, even if I only have 30 minutes.
Those little rides add up.
I went out with arm warmers and knee warmers and a sleeveless base layer under a ss jersey at around 11:30. Big mistake. At 6 miles I shed both sets of warmers and was glad I had put sun block on my arms. Even though I felt sluggish, I ended up with a respectable average for me, at 15.5 miles.