Florida Reads has activities for all the grades. You don't have to invent them you just take your reading vocabulary and concepts and put your own stuff into the activities. I even like leaving their vocabulary in and just adding mine because in just increases their vocabulary. http://www.fcrr.org/forTeachers.htm You can use these ideas to create the most amazing activities and centers for your students. You will have to make them though.
I also use edhelper.com a lot. You have to pay for it but you can get other teachers to go in with you and share the cost. I don't know if that is legal but it sure is cheaper.
Don't just focus on experienced teachers. I found some fantastic new ideas from brand spanking new teachers. Find a group or team and work together. It can really help you get through the year.
IMMEDIATELY get some file folders and save every idea you use or hear. Even if it doesn't work. It just didn't work with this group, it may work with a different one or can be adjusted. I have never had an identical year in 22 years of teaching. I am FINALLY getting rid of things because I am still collecting things.
Don't forget your curriculum director at your district or school. They are trained to help you out. Just remember to be really nice to them. That always helps.
When you get tired and frustrated, GO HOME! (after school of course) It will still be there tomorrow. Take some time for yourself. Get away from the stress. We had teachers who stressed so much that they were literally sick all year. One teacher actually OWED the district at the end of the year. Don't let that happen to you. Step back. Re-evaluate what you are doing. Is it worth your health to do it? Never.
If you get far behind in grading: do scan grading - look over the paper and if it looks fine or is complete give the student points. Or pick one problem and grade that one only and give the students points. Use file 13 (trash can) if you really have to. Do not feel you have to grade every paper. Remember, Most of them are practice. Grade quizes or tests and give points for completed assignments if necessary. Or have to students do ONE graded assignment every week. Don't tell them which one will be graded.
Here's wishing you a fantastic year. Linda