I'm surprised no one has mentioned a full interior swap to LEDs. This is a pretty cheap mod and you get much better light output from these than the standard bulbs...not to mention that they reduce consumption by more than 50% over standard bulbs. You can choose from warm to cool. I chose to go with the neutral white. I got mine from superbrightleds.com and v-leds.com based on JAs write up (actually, he has done a ton of very useful mods to his 4Runner and his writeups are superb).
Toyota 4Runner LED Lighting
I started with the license plate and running boards, moved to the map lights and doors, and I recently got the middle and rear cargo lights swapped. Now I just have the glove box left and I think i'll be fully converted
Have Fun!!