Magnetising your models bases, yes/no ?

Since the day i saw our one club member transport his models in a small box but with the bases magnetised so he could ride his bike to 40k i have toyed with the idea of magnetising my armies bases for easier storage/transport also. so here we are, dug out some plasticard, 2 part epoxy and the bunch of tiny 3mm x 1mm magnets i had stuck to my old fridge and started gluing :)