Cut Orchids, showy and long lasting

"How can I make my cut orchids last longer....a week, two weeks, three weeks....more??

1. Do not put them in the refrigerator. The fruits and veggies will "put them to sleep".
2. Do keep them in a clean (dishwasher or cloroxed clean) container with sufficient water to keep the cut end of the stem under water.
3. Use a very sharp blade (scissors, safety razor blade, knife) to slice the very end of the stem off to reopen the stem to the water.
4. Orchids are very clean flowers and if the water and container are clean will last much longer if kept in their own separate container, not mixed with field cut flowers.
5. Handle the orchid flowers carefully to prevent removal of the pollen cap. If the pollen cap is detached, the flower feels like it's been pollinated and the flower will start turning pink in the lip and shrivel in anticipation of setting seed.
6. Try to display the cut orchids in the coolest possible location away from direct sunlight, heater vents, etc.
7. If there are multiple blooms on the spike and some of the bottom ones start to fade first, remove the faded flowers. This will help keep the rest of the blooms going a little longer.