Do you use a tripod or monopod to take insect macro pics? I think some kind of support is important to me because I'm shakey at a short shooting distance. My breath may even blow the bug away.

Like most people I am largely handheld, almost all insect I shoot are loose in the wild and I try not to interfer with them. If there is a support to lean on do so and get at least one knee on the ground.
I do use a monopod, particularly above life size, although this is not always possible.
The reasons for support are more for focus accuracy rather than camera shake control, so this is even need with flash.
A monopod is handy to take some of the weight also, camera+lens+flash often held in odd positions, possibly with arms extended due to undergrowth getting in the way soon gets heavy.
I never use a tripod with insects, only flowers and fungi etc. The only way a tripod can effectivly be used with insects is if you find them early in the morning when they are too cold to fly or move fast. Else in the evening when they are looking to settle for the night. Otherwise a tripod is a recipe for frustration.
Other things that are handy:
An angle finder (Canon angle finder C recommended)
A tough waterproof groundsheet about 2X2 ft to kneel on and give protection from stingers and thorns.
A Wembly Plamp to steady branches etc.
Small scissors for minor gardening away grass stalks that are in the way (without damaging the bugs environment)
If working in available light a grey card for custom white balance as AWB is miles off when the whole frame is filled with green (I'm always too excited to remember this).

