I use one of these to get the hair off when I have a lot of stubble. The slide on guard keeps the blade from cutting you but you but it doesn't cut close. But it will get you to the point where you can use a regular razor after a week or two of beard growth.

Here is the style of razor I use every day:



It cuts close as hell, but if you have any bumps on your face it will cut them right off. I put a hot towel over my beard for a few minutes to open my pores and I also make sure my face is wet before applying the foam and I leave the foam on for 2-3 minutes. That helps a lot, even when shaving with a regular razor.

I have to shave every other day. If I go for a week without shaving I will have a full beard.