Today is officially the first day of summer and also International T-shirt day, and as a result, there are a large number of companies running special sales.

Some sales are celebrating summer, some are for International T-shirt Day, and some are just for the hell of it.  Either way, I’ve compiled all that I’ve come across or have gotten notified about below.  Check them out after the jump.

*IMPRM – take 25% off your purchase with discount code GOGETTER25.

*Rizzo Tees – take 20% off your purchase with discount code FAKEHOLIDAY.

*Word Boner – free shipping on all orders made today.  No discount code needed.

*Fresh Brewed Tees – take 20% off your purchase today with discount code Summer.

*Sharing Machine – take $2 off each tee using discount code HOTASBALLS.

*Avail Apparel – all t-shirts are $15 today in their “Welcome To Summer” sale.  No discount code needed.

*Instant Classic – all t-shirts are on sale and available for $20 for their “Summer” sale.  No discount code needed.

*twoeightnine design – free international shipping with discount code T-Day2010