I wouldn't give them a hair-cut, what ever green surfaces are there to build the bulb up for next years' blooms.

Theoretically, one is supposed to remember where they are and dig them up after the foliage dies down - then replant them in the fall. Thats certainly the easiest way to do it, the bulbs are all nicely formed.

However, I've dug them up in May and pulled them apart and planted them everywhere, big mess, and they made it just fine - lost a year flowering, but two years later, they were back in stride.

One of my old garden mentors used to just bend them over and rubber band them leaving the greenery intact, but more compact.

Until the foliage turns brown, the more expose to sunlight the stronger the bulb. The bulb needs about six weeks after blooming and foliage turning brown to set the new flower for next year.
Smdmt