Once the sealer is dry to the touch you can walk on it. The sealer dries usually within a few hours or less. You should not drive on the driveway for a minimum of twenty-four hours. If the driveway is heavily shaded you may want to extend that for an additional twelve to twenty-four hours. For the first couple weeks you should avoid any hard wheel cutting or sharp turning as much as possible.
The driveway should be sealed every two to three years depending upon the condition of your driveway and use.
The crackseal should, depending upon the condition and use of the drive, last for three to five years.

We use a spray application. Of course, we take great care not to spray anything except the driveway itself. We apply the sealer by hand/brushwork near the garage, brick/stone walkways, etc. So the over spray will not be a problem. Along grass edges there will be a two to three inch "moustache" from the over spray. This will not hurt the grass, and usually is gone within the first couple weeks with usual mowing.
After the sealer is dry to the touch, it is waterproof, but the water will reduce the surface temperature of the driveway and slow the curing process. Two days is enough to allow the sealer to have a good head start to cure quickly.
Any activity that involves a lot of friction on the surface of the drive should be avoided for a week to two weeks, especially activities like roller-blading, street hockey, and basketball. This will not hurt the sealer, but residue from the sealer will get on sneakers, basketballs, hands etc.
No, when you are ready to drive on it, just toss them into the trash.
It isn't necessary to sweep or clean your driveway before we arrive. We thoroughly clean the drive before sealing.
Any other questions please contact Craig at (603) 472-4002