If you are married and using contraceptives bring lot of condoms. Here it costs around $3.00 a pkt of 3 pcs but you get a box load of same for that price in Nepal and it is light and hassle free. I am saying hassle free because the condoms sold in Nepal is made in USA(it used to have that label when I was there but I am not sure lately) so there won't be any problem at the point of entry customs. 

Seriously.