base liquids

Can I store my base liquids (P/G,V/G and nicotine) in the fridge? The box I keep them in causes them to roll around or lie flat which I am concerned could result in small amounts of leakage.

HI. I am thinking of mixing my bases flavours first. Letting them steep on their own and then later mixing with Nic/VG/PG. Does anyone have pointers on this or point me towards the correct thread if it has been dealt with. Regards.