Since connecting through SSH is difficult when there is a dynamic IP, you can choose to make a static ip. This is one by editing the dhcpcd.conf file. (from Raspbian Jessie is 18-03-2016 with Kernal version 4.1.)
sudo nano /etc/dhcpcd.conf
Next add this:
interface eth0
static ip_address=192.168.0.10/24
static routers=192.168.0.1
static domain_name_servers=192.168.0.1
interface wlan0
static ip_address=192.168.0.200/24
static routers=192.168.0.1
static domain_name_servers=192.168.0.1
Where ip_address is the IP address you want for the pi. Where routers is the IP of the router. Normally this is 192.168.0.1. Where domain_name_servers is also the same 192.168.0.1.
Next reboot
sudo reboot
verify
ifconfig