Even to have a meal we buy vegetables, kneed the dough, roll the chappaties, bake them, cut, chop, cook vegetables, lay the table, serve the food and THEN eat… 
Though we don’t have to do so many physical tasks with VK but we need to sit Ina comfortable place, just hold VK, make an intention and say it for three times to VK.
To simplify, sending the energies, write name of your son in law, hold VK, say, “ total wealth serum*3, Balance serum*3, GOLDEN SUNRISE* 3 and Shield of 7 rays for 3 times and leave VK for 30 minutes.
To keep it more simple, as you leave VK go for your any daily chore, do it, come back, make the request again and go back again.
Or put an alarm on clock or mobile. Make a request to VK and carry on with your work.
If possible for you, you can ask your people at home to make request to VK as and when they see it. The motive of sending the energy without waiting for 30 minutes shall become easy.
It’s just a matter of putting things in habit and nothing else. We have had set our self Ina comfort zone and find it difficult to come out and make request again and again. Where we forget that we cook, eat, drink, sleep, awake, workout and many more things again and again daily also.