The following can be chanted to be always blessed with food to eat:

Annadae devi daehyannam pas(h)oon puthran yas(h)as(h)riyam
Aayuraarogyam ais(h)varyam daehi devi namo(a)sthuthae

அன்னதே(3) தே(3)வி தே(3)ஹ்யன்னம் பசூ(H)ன் புத்ரன் யச(H)ஸ்ரீயம்
ஆயூராரோக்(3)யம் ஐச்(H)வர்யம் தே(3)ஹி தே(3)வி நமோஸ்துதே

When you cook, any simple chanting like "om nama(h)ivaya" or " om namo narayanaya " or something similar can be said. It is just to prevent the mind from wandering to unpleasant thoights & the positive energy in the food to be magnified.

Salt water mopping can be done everyday, but please throw away the water immediately into WC. Never keep it since it is said to be contaminated with negtive energy.

Ask somebody to hold the baby & do the dhrishti procedure as i said. Always use ordinary rock salt for all this.

Thulasi Pujai - I will post after drafting it.
Love & regards,
Chithra.