The real grooming table is not always necessary. If they want to lay down, let them!Some always flop down which sometimes makes it difficult to do the belly.Using a table and a strap of some sort is perfect!
If you get real pro scissors, be careful not to cut your fingers off(or nails,like me)

Point them down when you cut the legs

Remember to make the foot round and keep the scissors flat.
Don't cut too much of the back of the hind legs, it wears down naturally...