Use tmpfs for /tmp

Setting /tmp to use tmpfs instead of a harddisk improves system performance, and is useful to get the best lifetime most out of your SSD drive. tmpfs will use ram as long as available, and swapspace if more is needed. Of course, if you create huge (x GB) files in /tmp you might run out of space.

tmpfs           /tmp          tmpfs   mode=0777 0 0