No matter how brilliant your teaching is; your students are going to get bored and look around the room. Why not have charts up of all the important grammar terms and uses? My students constantly tell me how helpful they are. These charts and posters are 8 1/2 x 11 and in color. I took them to Office Depot and had them enlarged to 11 x 14, and printed in color, for about $1.50 each. I laminated them at school and put Velcro on the back; during test days the posters come down! I've also had them put smaller versions in their data notebooks as a reference tool.
These grammar posters are in Word format to allow you to modify them. They include:
Verbs to use with Infinitives
Prompts for past tense